CN114144104A - Floor cleaning machine - Google Patents

Abstract

A floor cleaning machine is proposed, comprising: a floor head (12); at least one cleaning roller (14) arranged on the floor head (12); a tank arrangement (84) arranged on the ground head (12); a movable foot arrangement (152) arranged on the floor head (12), wherein in a parking position (162) of the floor cleaning machine the floor head (12) is supported on the standing surface (16) by the foot arrangement (152) such that the at least one cleaning roller (14) is spaced apart from the standing surface (16), wherein the tank arrangement (84) has at least one through-recess (154a, 154b), through which the foot (170a, 170b) of the foot arrangement (152) sinks at least in the parking position (162).

Description

Floor cleaning machine

Technical Field

The invention relates to a floor cleaning machine, comprising: a ground head; at least one cleaning roller disposed on the floor head; a tank arrangement arranged on the ground head; a movable foot device arranged on the floor head, wherein in the parking position of the floor cleaning machine the floor head is supported on the standing surface by the foot device such that the at least one cleaning roller is spaced apart from the standing surface.

Background

In Alfred

A hand-guided floor cleaning machine is described in the cleaning system product manual BR 30/4C of 2009-1 month of Vertriebs-GmbH (arfred kelly sales company), wherein a parking position with an unlocking function is provided. A roller for de-burdening the brush is provided, which is automatically removed when the machine is parked. Therefore, the brush roller can be protected from the pressed point.

US 2011/0219555 a1 discloses a cleaner head.

WO 2018/001754 a1 discloses a wet cleaner with a rotatable cleaning roller and a scraping device displaceable onto the cleaning roller.

Floor cleaning machines are also known from WO 2015/086083 a1, WO 2016/058956 a1, WO 2016/058856 a1, WO 2017/063663 a1, WO 2016/058879 a1, WO 2016/058901 a1, WO 2016/58907 a1, WO 2017/152970 a1, WO 2017/152973 a1, WO 2017/153450 a1, WO 2019/029821 a1, WO 2018/162092 a1, WO 2018/162091 a 1.

Disclosure of Invention

The object of the invention is to provide a floor cleaning machine of the type mentioned above, which provides an optimized cleaning effect in a compact construction.

This object is achieved according to the invention in the case of the aforementioned floor cleaning machine in that the tank arrangement has at least one through-recess through which the foot of the foot arrangement sinks, at least in the parking position.

The lifting of the cleaning roller relative to the mounting surface can be achieved in the parking position by means of the foot device. So that no "parking deformation" of the cleaning roller occurs. The cleaning liquid on the cleaning roller does not come into contact with the surface and damage to the surface is avoided.

Further, improvement in drying of the cleaning roller can be achieved.

Since at least one foot passes through the tank arrangement, compromises with respect to the outer dimensions of the floor head do not have to be taken into account on the basis of the foot arrangement. Thus, for example, it is possible to achieve cleaning in the vicinity of the edge by the cleaning roller extending at least approximately as far as the lateral side of the floor head.

Furthermore, it is possible to construct a floor head having a relatively small height, resulting in good trafficability underneath a barrier, such as furniture or the like.

Furthermore, the actuating mechanism for the foot device can be arranged in a simple manner on the floor head, wherein the floor head can be realized compactly.

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

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

The at least one through-opening recess passes between the upper side and the lower side of the tank arrangement. The recess establishes a connection between the upper side and the lower side and serves at least temporarily for accommodating the at least one foot.

The at least one recess may be channel-shaped and closed off toward all sides except toward the top and bottom. The recess can also be embodied, for example, as a recess which is open to one side (lateral side) or to multiple sides (lateral side) and can be located, for example, at a corner of the tank arrangement.

The tank arrangement on the floor head is, for example, a dirty fluid tank arrangement, a tank arrangement for cleaning liquid or a tank arrangement with at least one receiving chamber for dirty fluid and at least one receiving chamber for cleaning liquid.

The foot arrangement is arranged and constructed in particular mirror-symmetrical with respect to the center of gravity of the floor cleaning machine. As a result, no tilting moments occur in the parking position.

Advantageously, the foot means has at least one first foot and a second foot spaced apart from the first foot, which have at least one of the following features:

the first and second feet are spaced from each other in a spacing direction parallel to the pivot axis of the retaining means relative to the ground head;

-the first and second feet are spaced apart from each other in a spacing direction parallel to the rotational axis of the at least one cleaning roller;

the tank arrangement can be removed from the floor head in a removal direction and the first and second feet are spaced apart from each other in a spacing direction transverse to the removal direction.

A reliable parking of the floor cleaning machine in the parking position is achieved by means of at least two spaced-apart feet. A compact construction of the floor head is obtained. The tank arrangement can be removed in a simple manner for emptying or cleaning.

It is very advantageous if a support region of the floor head for the standing surface is arranged or formed on the floor head or the tank arrangement, which support region is spaced apart from the at least one cleaning roller, wherein the support region is arranged in particular on a rear end of the floor head or the tank arrangement facing away from the at least one cleaning roller. The floor head and thus the floor cleaning machine can be supported in a parking position by means of the support region. The cleaning roller can be lifted by means of a foot arrangement, wherein the support at the support region is maintained. The support region can also be configured such that the floor head and thus the floor cleaning machine is supported on the standing surface by the support region during the cleaning operation.

It is advantageous if the support region has at least one sliding element or at least one rolling element in order to achieve an optimized support or usability.

Furthermore, it is advantageous if the at least one foot is spaced apart from the support region and is arranged, in particular with respect to the longitudinal axis of the floor head, between the at least one cleaning roller and the support region. The at least one cleaning roller can thus be lifted from the underlying surface in a simple manner by the support on the support region in such a way that the foot device is correspondingly moved.

In one embodiment, the floor head is supported on the standing surface by the support region and the at least one cleaning roller during the cleaning operation. An optimized cleaning result with a simple operating mode is thus obtained.

It is also advantageous if, in the parking position, the floor head is supported on the underlying surface by means of the support region and the at least one foot, wherein the at least one cleaning roller is lifted off the underlying surface. This results in an optimized protection of the placement surface and of the at least one cleaning roller.

In one embodiment, the floor cleaning machine is guided by hand using a holding device guided by an operator.

A simple operating mode is obtained when the retaining device is articulated to the floor head in a pivotable manner about a pivot axis. In particular, a hand-guided floor cleaning machine can thus be realized in a simple manner. By means of the pivotability of the holding device, it is possible to carry out adaptation to the height of the operator and, for example, to carry out wiping movements or movements under obstacles and the like. Furthermore, the pivotability of the retaining device can be applied in order to bring the foot device into or out of the parking position.

In one embodiment, the floor head has a support with at least one of the following features:

the tank arrangement is held, and in particular is held in a removable manner, on the stand;

-at least one cleaning roller is held on a support;

the drive for the at least one cleaning roller is held on the holder;

the holding device for the operator is pivotably supported on the stand;

the foot device is mounted on the stand in a movable and in particular pivotable manner;

in the height direction of the ground head, the stand is between the pivot axis of the foot means and the tank means;

the holder is or comprises a holding plate.

A compact construction of the floor head is obtained by means of the respective support. The ground head can achieve a very small height and thus good trafficability. The number of components can be kept small. The floor head may be constructed to have a relatively small weight. Good operability is obtained.

It is extremely advantageous if the foot means are pivotably supported on the floor head. This results in a structurally simple and compact construction of the floor head, wherein the parking position can be reached in a simple manner and can be cancelled in a simple manner.

In particular, it is provided that, with respect to the height direction of the floor head, a part of the foot device is arranged above the tank device away from the underside of the floor head, wherein in the parking position the underside faces the standing surface. A simple and compact construction is thereby obtained. Finally, only at least one foot must "penetrate" the tank arrangement via the respective recess.

Advantageously, at least one of the following features is specified:

the pivot axis of the foot means is parallel to the pivot axis of the retaining means on the ground head;

the pivot axes of the foot means and the pivot axes of the retaining means are spaced parallel to each other;

the pivot axis of the foot means is parallel to the rotation axis of the at least one cleaning roller;

the pivot axis of the foot means is positioned between the pivot axis of the retaining means and the rear end of the floor head, with respect to the longitudinal axis of the floor head;

in the parking position, the pivot axis of the foot device is oriented at a lower level than the pivot axis of the holding device, wherein the lower side faces the resting surface.

A compact construction of the floor head is obtained. In particular, the height dimension of the floor head can be kept small. The foot arrangement can be integrated into the floor head in an optimized manner. In the parking position, a secure parking with the raised at least one cleaning roller is achieved.

Advantageously, the foot device has a bow which is pivotably articulated on the floor head, the bow having at least one of the following features:

-at least one first arm and a second arm are arranged spaced apart on the bow;

-at least one first leg is arranged on the first arm;

-at least one second leg is arranged on the second arm;

the first arm and/or the second arm is/are directed in the direction of the at least one cleaning roller;

the bow encloses a region in a fork-like manner with the first and second arms, where the drive for the at least one cleaning roller rests on the floor head;

in the height direction of the floor head, the bow and in particular the first and second arms are positioned above the tank arrangement.

This enables the foot device to be integrated into the floor head in an optimized manner. A compact size of the floor head can be achieved. In the parking position, a secure parking with the raised at least one cleaning roller is obtained. The change in the measures at the tank arrangement due to the foot arrangement can be limited to the recess assigned to at least one foot.

It is also advantageous if at least one tongue is arranged on the bow, in particular it can be acted upon by a holding device for the operator. The tongue can couple a torque into the foot device in order to bring the foot device into the parking position, in particular.

Advantageously, at least one of the following features is specified:

-at least one tongue is arranged between the first arm and the second arm;

at least one tongue is spaced apart from the first arm and/or from the second arm;

the at least one tongue is directed away from the bow in the direction of the at least one cleaning roller;

-at least one tongue is arranged symmetrically with respect to the lateral side of the ground head;

at least one tongue is arranged above the drive for the at least one cleaning roller in the height direction of the floor head;

at least one tongue is arranged in the region of a hinge by which the holding device is pivotably articulated on the ground head;

the hinge for the holding device comprises a first hinge leg and a second hinge leg spaced apart from the first hinge leg, wherein at least one tongue is positioned between the first hinge leg and the second hinge leg.

By the construction and arrangement of the at least one tongue, a compact construction of the floor head is obtained. The foot arrangement can be integrated into the floor head in an optimized manner.

In one embodiment, the retaining device is coupled to at least one cam which acts on the at least one tongue in a specific pivot range of the retaining device relative to the floor head and which causes the pivot movement of the foot device by means of the pivot movement of the retaining device. The parking position can thus be achieved in a simple and automated manner by a pivoting movement of the holding device relative to the floor head.

It is furthermore advantageous if at least one rib is arranged on the retaining device, which rib is separate from the at least one cam and acts on the at least one cam in a specific pivoting range of the retaining device relative to the floor head and causes a movement of the at least one cam for acting on the at least one tongue. The function of the retaining device can therefore be achieved only in a specific pivoting angle range around the parking position of the retaining device relative to the floor head. It is therefore not necessary for at least one cam to be followed by the retaining device for all pivoting angles. In particular, a compact construction of the floor head at the respective articulation of the retaining device is thus obtained.

In one embodiment, the at least one rib is arranged on a shaft which is connected in a rotationally fixed manner to the holding device. In particular, the holding device is pivotably supported on the floor head by means of a shaft.

It is also advantageous if the at least one cam is arranged on the holding device in a rotatable manner and in particular on the shaft of the holding device in a rotatable manner. Thus, the tab can be positioned outside of a particular range of pivot angles so that the tab is "loose" with respect to the leg arrangement and does not exert significant force. Only when a specific positioning of the holding device relative to the floor head is reached (in the vicinity of the parking position up to the parking position) does the corresponding action take place in order to achieve the parking positioning.

Advantageously, the axis of rotation of the at least one projection with respect to the retaining device coincides with the pivot axis of the retaining device with respect to the floor head. This results in a simple structural design with a compact realizability of the floor head.

It is very advantageous if the at least one rib acts on the at least one projection only in one pivoting direction of the retaining device. The function can thus be achieved when the holding device is moved into the parking position relative to the floor head. In normal cleaning operation, in particular, no action is present. Preferably, the particular pivoting direction of the holding device is towards the at least one cleaning roller.

In one embodiment, a spring device is provided, the spring force of which is directed to bring the foot device from the parking position into the unsupported position. The unsupported position is provided in particular for a cleaning operation. The foot means can then be moved back by the spring force of the spring means in order to bring the cleaning roller into contact with the underlying surface. In particular, an automatic reset is performed.

In a structurally simple embodiment, the spring device is designed as a tension spring device which is intended to pull the at least one foot device upward in the height direction of the floor head (in particular away from the tank device or the standing surface). Thereby, the spring device can be integrated into the floor head in a simple manner. A compact size of the floor head can be achieved.

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

In one embodiment, in the fixed pivot position, the retaining device is fixed in a non-positive and/or positive manner relative to the floor head. Thus, a "lowering" of the holding device can be achieved in a simple manner.

In a structurally simple embodiment, in particular a force-locking fastening is achieved. A holding magnet arrangement is provided for fixing the pivotal positioning of the holding arrangement relative to the floor head.

Advantageously, at least one of the following features is specified:

the holding magnet arrangement comprises at least one holding magnet and a mating element assigned to the at least one holding magnet;

-at least one holding magnet is arranged in the housing of the floor head;

-at least one mating element is arranged in the housing of the floor head;

at least one associated mating element, which is connected to the holding device in a rotationally fixed manner, of the at least one holding magnet is arranged on the floor head in a rotationally fixed manner, or at least one associated holding magnet, which is connected to the holding device in a rotationally fixed manner, is arranged on the floor head in a rotationally fixed manner;

the at least one counter element is designed as a stop for the holding device and in particular for the associated at least one holding magnet when the at least one counter element is mounted on the floor head so as to be fixed against relative movement, or the at least one holding magnet is designed as a stop for the holding device and in particular for the associated at least one counter element when the at least one holding magnet is mounted on the floor head so as to be fixed against relative movement;

at least one holding magnet or at least one mating element is arranged on a rocker arm of the holding device, wherein the rocker arm is pivotably arranged in the housing of the floor head by the holding device.

The at least one mating element is in particular a metal plate which cooperates with the associated at least one holding magnet in order to achieve a force-fitting fastening.

The at least one holding magnet and/or the at least one mating element can be protected by their arrangement in the housing. The floor head can be constructed with a small height and good accessibility under furniture and the like is obtained.

The non-positive fixing of the parking position can be achieved in a simple manner by the at least one holding magnet or the at least one counter element being arranged pivotably with the holding device.

The at least one mating element (or respectively the at least one holding magnet) can also be configured for a stop. For example, the magnetic force of the holding device in the parking position prevents the rewinding of the holding device. The stop limits the maximum pivotability of the retaining device relative to the floor head.

In one embodiment, the at least one holding magnet or the at least one mating element is arranged on a rocker arm of the holding device; the rocker arm is movable in a housing of the floor head. The parking position can thus be ensured in a simple manner by means of magnetic forces. Furthermore, a stop can be provided in a simple manner. The height of the floor head can be kept small in order to achieve good traffic.

It is extremely advantageous that the foot device is automatically brought into the parking position by pivoting the holding device for the operator into a fixed pivot position relative to the floor head, and in particular when the floor head rests on the standing surface, the at least one cleaning roller is lifted from the standing surface. Thus, a simple operability for the user is obtained.

In one embodiment, the holding device has a rotatability relative to the floor head, wherein the axis of rotation is at least approximately parallel to the longitudinal axis of the holding device. Thus, an extended operating possibility is obtained; the handle for guiding the floor cleaning machine is then rotatable on the floor head. The retaining device can be pivoted (in addition to the pivotability) relative to the floor head at least in part of the angular range. The rotatability of the retaining device on the floor head is achieved, for example, by a corresponding articulation of the retaining device to the floor head (in particular the retaining device can then be rotated as a whole relative to the floor head), or the retaining device is constructed in multiple parts and the first part of the retaining device can be rotated relative to the second part of the retaining device.

Advantageously, a form-locking device is provided which, in the parking position of the floor cleaning machine, blocks the rotatability of the holding device about the axis of rotation. In this way, the holding device can be fixed in a simple manner in the parking position relative to the floor head.

In one embodiment, a cover which can be moved together with the holding device is arranged on the floor head, wherein a first form-locking element is arranged on the holding device and a second form-locking element which cooperates with the first form-locking element is arranged on the cover, and wherein in the parking position the first form-locking element and the second form-locking element can be brought into form-locking engagement. Thus, the parking position can be ensured in a simple manner.

In one embodiment, a spacer bracket is provided, which, in the event of a non-parking position, positions the cover relative to the holding device such that the first form-locking element and the second form-locking element are not in form-locking engagement. In this way, a rotation of the holding device about the axis of rotation can be achieved without the parking position being present.

In one embodiment, the spacer support is or comprises a spring-loaded pin. In particular, in the parking position, such a force can be exerted on the pin by the cover, so that the pin no longer fulfills the spacer support function and a form-locking engagement between the first form-locking element and the second form-locking element can be achieved.

In a structurally simple embodiment, the hood is assigned a guide rail on which the curved partial region of the hood is guided. In this way, a rotatability of the holding device about the axis of rotation is possible in the parking position, and in the parking position, a positive engagement can be achieved by a corresponding positioning of the cover for fixing the parking position.

In particular, in the case of a non-parking position, the guide rail serves as a spacer for the cover relative to the holding device. Thus, the form-locking engagement can be prevented in the event that the parking position is not present.

It is extremely advantageous if the guide rail is arranged on a movable cam. In this case, the movable cam acts in particular on the foot arrangement in order to correspondingly position one or more feet in the parking position. By arranging the guide rails on the lugs, it is possible to realize: the cover is automatically positioned when the holding device is transferred into the parking position, in order to then form-fit connect again in the parking position.

Furthermore, it is advantageous if a stop for the cover is arranged on the floor head, which stop acts on the cover in the parking position and brings about a form-fitting connection with the retaining device. In this way, the parking position of the foot device can be automatically achieved when transitioning into the parking position of the floor cleaning machine, and the form-locking fastening of the holding device with respect to the floor head can also be automatically achieved with regard to the rotatability of the holding device relative to the floor head about an axis of rotation which is at least approximately parallel to the longitudinal axis of the holding device.

In a structurally simple embodiment, the tank arrangement has a recess into which, in particular, a partial region of the drive of the at least one cleaning roller is sunk. A compact construction of the floor head is thus obtained. In particular, the height dimension thereof can be kept small.

In one embodiment, at least one cleaning roller is designed in two parts and is provided with a central drive. Whereby cleaning near the edge can be achieved.

It is very advantageous to provide a pot arrangement for the cleaning liquid, which is arranged on the holding device or on the floor head, and in particular to provide a conveying device for conveying the cleaning liquid from the pot arrangement for the cleaning liquid to the at least one cleaning roller. Thus, a wet type cleaner can be realized. At least one of the cleaning rollers can be wetted and can thus better loosen dirt from the surface to be cleaned.

The cleaning liquid is especially water with or without e.g. surface active detergent additives.

In one embodiment, the tank arrangement is at least partially a dirty fluid tank arrangement arranged on a floor head. It may receive the dirty fluid directly from the at least one scrub roller. In particular, it is not necessary to provide a dirty fluid suction.

Advantageously, a scraping device is provided for scraping and coupling the dirty fluid from the at least one cleaning roller into the dirty fluid tank. Thus, an optimized cleaning effect can be achieved when the floor cleaning machine is constructed in a compact and structurally simple manner.

In particular, at least one of the cleaning rollers has a textile coating, and preferably the scraper of the scraping device dips into the textile coating. Reference is made in this respect to WO 2015/086083 a1 which is set forth in detail for this purpose.

According to the invention, the aforementioned object is also achieved in that the retaining device is pivotably articulated on the floor head, at least one rib is connected in a rotationally fixed manner to the retaining device, at least one cam is provided, which can be rotated relative to the retaining device and which is separate from the at least one rib, in a specific range of pivotal positioning of the retaining device relative to the floor head, the at least one rib acts on the at least one cam and brings about a rotational movement of the at least one cam, and the at least one cam is coupled to the foot device, and in the specific range of pivotal positioning of the retaining device relative to the floor head, a movement of the foot device can be actuated by the at least one cam and the foot device can be brought into the parking position.

By means of (1) at least one rib, (2) at least one cam, (3) a mechanical chain of the foot means, the movement of the foot means can be realized in a simple manner by a pivoting movement of the holding means. However, for this purpose, a continuous coupling is not necessary, so that outside a specific pivot angle range the rib does not act on the at least one cam. Outside a certain pivoting angle range, the cams also do not have to be guided together and a compact construction of the respective floor head is obtained.

It is very advantageous if the floor head has a first transverse side and a second transverse side, wherein in particular the at least one cleaning roller extends at least approximately up to the first transverse side and/or up to the second transverse side and the at least one foot is set back relative to the first transverse side and the second transverse side. The fact that at least one cleaning roller extends at least approximately as far as the respective lateral side means: the cleaning roller is moved back by an area of at most 5% with respect to its total length (in the width direction between the two lateral sides). Whereby cleaning near the edge can be achieved. The leg arrangement with at least one leg does not project beyond the lateral side but is moved back or at most at the lateral side. This results in a simple construction. The at least one recess can be located as a recess on the respective lateral side or spaced apart therefrom (as a "channel").

Drawings

The following description of the preferred embodiments is provided to illustrate the invention in more detail with reference to the accompanying drawings.

Wherein:

FIG. 1 shows an embodiment of a hand-guided floor cleaning machine in a parked position;

FIG. 2 shows the floor head of the floor cleaning machine according to FIG. 1 in a parked position;

fig. 3 shows a sectional view of the floor head according to fig. 2 in the parking position;

fig. 4 shows a perspective partial view of the floor head (without covering) according to fig. 2 in the parking position.

Fig. 5 shows the floor head according to fig. 2 in a cleaning operation (not in the parking position);

fig. 6 shows the floor head according to fig. 5 in a sectional view during a cleaning operation;

fig. 7 shows the floor head according to fig. 5 (without the cover) in a cleaning operation in a perspective partial view;

fig. 8 shows the floor head according to fig. 2 or 5 without the covering in an exploded view;

fig. 9 shows a view of the floor head from the underside in the direction a according to fig. 5;

fig. 10 shows a ground-head tank arrangement according to fig. 2 or according to fig. 5, wherein the tank arrangement is open;

FIG. 11 shows a partial view of the second embodiment of the hand-guided floor cleaning machine in a top view, which is not in the parked position;

FIG. 12 shows a cross-sectional view along the line 12-12 according to FIG. 11;

FIG. 13 shows a cross-sectional view along the line 13-13 according to FIG. 11;

FIG. 14 shows a cross-sectional view along the line 14-14 according to FIG. 11;

FIG. 15 shows the same diagram as FIG. 11 in the park position;

FIG. 16 shows a cross-sectional view along the line 16-16 according to FIG. 15;

FIG. 17 shows a cross-sectional view along the line 17-17 according to FIG. 15; and

fig. 18 shows a cross-sectional view along the line 18-18 according to fig. 15.

Detailed Description

The floor cleaning machine according to the invention comprises a floor head 12 (fig. 2 to 10) as an embodiment of a hand-guided floor cleaning machine, which is shown in fig. 1 in a side view as a whole and is designated by 10.

On the floor head 12 is arranged (at least one) cleaning roller 14. In the cleaning operation of the hand-guided floor cleaning machine 10, the floor head 12 is supported on and acts against a surface 16 to be cleaned via the cleaning roller 14 (fig. 5 to 7). The surface 16 to be cleaned is in particular a hard floor.

The floor cleaning machine 10 comprises a holding device 18 (fig. 1). The holding device 18 is pivotably articulated on the floor head 12 via a hinge 20. The pivotable pivot axis 22 (see fig. 4) of the holding device 18 on the floor head 12 is oriented transversely and in particular perpendicularly to a longitudinal axis 24 (see fig. 4) of the floor head 12. The longitudinal axis 24 defines the extension of the floor head 12 transverse to the cleaning roller 14 (in particular transverse to the axis of rotation of the cleaning roller 14; see below).

In a proper operation of the hand-guided floor cleaning machine 10, the pivot axis 22 is at least approximately parallel to the placement surface 16 when the floor head 12 is placed on the placement surface 16 for cleaning operation and the placement surface is flat.

The floor cleaning machine 10 is hand-guided. The holding device 18 is configured such that an operator can guide the floor cleaning machine 10 on the standing surface 16, wherein the floor head 12 is supported on the standing surface 16 and the operator (spaced apart from the floor head 12) stands himself on the standing surface 16; the hand-guided floor cleaning machine 10 is in particular configured such that it can be operated by a standing operator.

In an embodiment, the retaining device 18 comprises a retaining bar 26. The retaining bar 26 is hinged to the floor head 12 via a hinge 20. The retaining bar 26 extends on a longitudinal axis 28 oriented transversely, in particular perpendicularly, to the pivot axis 22.

The retaining lever 26 is articulated on the ground head 12 at the distal end (with respect to the operator) via the articulation 20. The holder 18 has an arcuate grip 30 on the proximal end.

In particular, one or more actuating elements, such as an on/off switch or the like, are arranged in the region of the bow handle 30.

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

Due to the pivotable articulation of the holding device 18 by the articulation 20 about the pivot axis 22, an operator standing on the standing surface 16 and guiding the floor cleaning machine 10 by means of the arched handle 30 can match the overall height of the floor cleaning machine 10 above the standing surface 16 to its body height. Furthermore, a wiping movement can be achieved by means of a back and forth guide. A floor cleaning machine 10 on a standing surface 16 can be realized. Furthermore, the overall height of the floor cleaning machine 10 is reduced by pivoting the retaining device 18 in the direction of the standing surface 16 in order to be able to move the floor head 12 under furniture or the like.

It can also be provided that the retaining device 18 can be pivoted about one or more further pivot axes relative to the floor head 12, in order to achieve better accessibility in particular. For example, the retaining device 18 pivots relative to the floor head 12 about a pivot axis parallel to the longitudinal axis 28. Reference is made in this respect to WO 2016/058879 a 1.

The floor cleaning machine 10 may be mains powered. In particular, a power supply line with a plug is arranged on the holding device 18, which leads to the respective consumer.

In one embodiment, the hand-guided floor cleaning machine 10 is operated by a battery. A battery device 32, and in particular a rechargeable battery device 32, is arranged fixedly or removably on the holding device 18. The battery device supplies the electrical energy required during operation of the floor cleaning machine 10.

The hand-guided floor cleaning machine 10 is designed in particular as a wet cleaning machine. Provision is made for the surface 16 to be wetted directly or via the cleaning roller 14. In one embodiment, the tank arrangement 34 for the cleaning liquid is arranged on the holding device 18, in particular in a removable manner. The tank arrangement 34 for the cleaning liquid can contain water, optionally with additives, which are cleaning agents and in particular surface-active cleaning agents.

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

A conveying device 40 is provided, via which cleaning liquid can be conveyed from the tank arrangement 34 to the floor head 12 and in this case in particular to the cleaning roller 14. The delivery of cleaning liquid from the tank arrangement 14 to the floor head 12 is, for example, gravity operated. For example, it is also possible to provide a pump for conveying the liquid accordingly.

The floor head 12 includes a stand 42 (fig. 3, 4, 8). The support 42 is in this embodiment designed in the form of a plate and has an upper side 44 and a lower side 46.

The floor head 12 extends in a height direction 48 perpendicular to the longitudinal axis 24. The upper side 44 and the lower side 46 are transverse and at least approximately perpendicular to the height direction 48.

On the upper side 44 of the support 42, a drive 50 for the cleaning roller 14 is positioned (see also fig. 8). For this purpose, a pot-shaped receptacle 52 (fig. 8) is formed on the upper side 44 on the carrier 42; the receptacle 52 is a recess in the bracket 42 that is open to the upper side 44. The recess is closed towards the underside 46.

The drive device 50 comprises a motor, in particular an electric motor 54, which is arranged in a housing 56. The housing 56 is fixed to the bracket 42.

In one embodiment, motor 54 has a motor axis 58 oriented transversely to longitudinal axis 24 and transversely to height direction 48. For example, the motor axis 58 is oriented parallel to the pivot axis 22 of the hinge 20.

The drive 50 also includes a transmission 60 for transmitting torque from the motor 54 to the scrub roller 14. In one embodiment, the transmission 60 further includes a reduction transmission that reduces the rotational speed of the motor 54.

For example, it is provided that the motor 54 has a rotational speed of the order of 3000 revolutions per minute. The reduction gearing reduces the speed to a speed of approximately 600 or 700 revolutions per minute. The cleaning roller 14 rotates at this rotational speed.

The drive device 50 includes a first shaft 62 and a second shaft 64. The transmission 60 is torque-operatively coupled with the first and second shafts 62, 64 (and likewise with the motor 54).

With respect to the longitudinal axis, the first shaft 62 extends toward one side and the second shaft 64 extends toward the other, oppositely facing side.

The cleaning roller 14 is constructed in two parts and has a first part 66 and a second part 68 (see fig. 8). The first part 66 is located on the shaft 62 in a rotationally fixed manner; rotation of the shaft 62 by the motor 54 causes rotation of the first portion 66 of the scrub roller 14. Rotation of the second shaft 64 causes rotation of the second portion 68 of the scrub roller 14.

The first shaft 62 and the second shaft 64, and thus the first portion 66 and the second portion 68 of the scrub roller 14, are driven synchronously. The motor 44 acts simultaneously in a synchronous manner on a first shaft 62 and a second shaft 64 by means of a transmission 60.

The scrub roller 14 with the first portion 66 and the second portion 68 has a unique rotational axis 70 (fig. 4). The axis of rotation 70 is parallel to the pivot axis 22. Which is transverse and in particular perpendicular to the longitudinal axis 24. Furthermore, the axis of rotation is also transverse and in particular perpendicular to the height direction 48.

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

The drive 50 is designed as a central drive. The torque-acting coupling between the motor 54 and the cleaning roller 14 is realized in an intermediate region 72 (see fig. 8) between the first shaft 62 and the second shaft 64. In particular, the central region 72 is arranged centrally on the floor head 12 with respect to a first lateral side 74 and an opposite second lateral side 76 of the floor head 12. The spacing direction between the first lateral side 74 and the second lateral side 76 is transverse to the longitudinal axis 24 and transverse to the height direction 48.

Floor cleaning machines with a central drive for the cleaning roller 14 are described, for example, in WO 2015/086083 a1, WO 2016/058879 a1, WO 2017/152970 a1, WO 2017/152973 a1 or WO 2019/029821 a 1. Reference may be made in detail to these documents.

The scrub roller 14 is held on the stand 42 of the floor head 12 by the housing 56 with the shafts 62, 64. The support 42 of the floor head 12 has a front end 78 and an end 80 facing away from the front end.

In the normal cleaning operation of the hand-guided floor cleaning machine 10, it is moved in the direction 80 over the standing surface 16 to be cleaned (fig. 5). The direction 80 is the forward direction. In particular, during operation, the scrub roller 14 is driven by the drive 50 such that rotation of the scrub roller 14 on the mounting surface 16 causes a traction of the floor cleaning machine in the direction 80. The pulling in the direction 80 leads in particular to a forward movement of the hand-guided floor cleaning machine 10 in the direction 80. In fig. 5, the respective direction of rotation 82 for the rotation of the cleaning roller 14 and the axis of rotation 70 is shown by an arrow with reference numeral 82, which leads to an advance in the direction 80.

The scrub roller 14 with its first portion 66 and second portion 68 is held on the bracket 42 before the front end 78 of the bracket 42.

The floor cleaning machine 10 comprises a tank arrangement 84, which in the embodiment shown is a dirty fluid tank arrangement and is arranged on the floor head 12 in a removable manner. The dirty fluid tank arrangement 84 is used to contain dirty fluid scraped off the scrub roller 14. In particular, the dirty fluid is a cleaning liquid loaded with dirt.

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

The dirty fluid tank assembly 84 is removably secured to the floor head 12 by a securing assembly 88 secured to the bracket 42.

The fastening device 88 comprises, for example, a flap 90 (fig. 4) which can be folded over and is arranged on the carrier 42. The dirty fluid tank arrangement 84 has recesses 92 (on the lateral sides 74, 76) adapted to the tongues 90, wherein elements of the respective tongues 90 can be inserted into the associated recesses 92 and form-locking fixing of the dirty fluid tank arrangement 84 on the carrier 42 is achieved when the elements are inserted in the recesses 92.

The tongue 90 is configured such that it is lockable and thus ensures a corresponding fixed position of the dirty fluid tank arrangement 84 on the floor head 12. This secured position is shown in fig. 4.

By turning up the flap 90 and releasing the locking of the secured position, the corresponding element of the flap 90 is lifted out of the associated recess 92 and the dirty-fluid tank arrangement 84 can be removed for emptying or cleaning.

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

For example, it can be provided that the removal direction 94 is parallel to the height direction 48. The removal direction may also include an acute angle (indicated by reference numeral 94' in fig. 2) with the height direction 48.

The dirty fluid tank arrangement 84, in one embodiment (see fig. 10), includes a basin section 96 and a lid section 98. The lid portion 98 is removable from the basin portion 96 to enable emptying and cleaning of the dirty fluid tank arrangement 84.

The basin section 96 has a bottom 100. When the dirty fluid tank arrangement 84 is seated on the floor head 12, an underside 86 of the dirty fluid tank arrangement 84 and thus of the floor head 12 is formed on the bottom. The base 100 is configured substantially flat in the exemplary embodiment. A large receiving volume of the dirty fluid tank arrangement 84 can be achieved with a correspondingly small height in the height direction 48.

The lid portion 98 follows the basin portion 96 with its outer contour. In particular, it is provided that the pot part 96 is open over its entire cross section by removing the cover part 98.

A basin-shaped recess 102 is formed in the lid portion 98. When the lid portion 98 is placed on the basin portion 96, the recess 92 extends into the receiving space 104 of the dirty fluid tank arrangement 84. It may be provided that the bottom of the open space 104 contacts the bottom 100 of the basin section 96.

The recess 102 corresponds to the receiving portion 52 on the holder 42. The receiving portion 52 on the bracket 42 has a downwardly projecting region. When the dirty fluid tank arrangement 84 is seated in the bracket 42, the corresponding region of the receptacle 52 sinks into the recess 102 of the dirty fluid tank arrangement 84.

Thus, a floor head 12 having a small height in the height direction 48 can be constructed.

Furthermore, the region of the receptacle 52 which sinks into the recess 102 of the dirty fluid tank arrangement 84 can be used to provide a form-locking connection with regard to a displacement of the dirty fluid tank arrangement 84 parallel to the longitudinal axis 24 and transverse to the longitudinal axis 24. The dirty fluid tank assembly may be secured to the bracket 42 in these orientations. In principle, therefore, only the stabilization in the height direction 48 by the fixing device 88 is required.

The scrub roller 14 is positioned on the bracket 42 such that the scrub roller extends beyond the underside 86 of the floor head 12 (dirty fluid tank arrangement 84). This is achieved in a cleaning operation (see fig. 5), in which the floor head 12 is supported on the placement surface 16 by the cleaning roller 14, without the underside 86 touching the placement surface 16.

In one embodiment, a support region 106 is arranged on the floor head 12, which is spaced apart from the cleaning roller 14. The support region 106 serves to support the floor head 12 and thus the floor cleaning machine 10 as a whole on the standing surface 16, in particular during cleaning operation and in the parking position. The support area 106 is arranged such that the underside 86 of the dirty fluid tank arrangement 84 does not contact the standing surface 16 in both the cleaning operation and the parked position.

The support region 106 is arranged in particular on a rear end 108 of the carrier 42, which rear end faces away from the front end 78.

In an embodiment, the support area 106 is formed by a slider or roller 110.

The dirty-fluid tank arrangement 84 comprises a recess 112 through which the respective support region 106 sinks in order to achieve support on the mounting surface 16. Here, the recess 112 is formed in particular on the basin section 96 and the cover section 98.

The cleaning roller 14 or the parts 66, 68 thereof each have a bearing 114, in particular a cylinder. A coating 116 made of a textile material is arranged on the carrier 114. The coating 116 is made of, for example, a microfiber material. Reference is made in this respect to the same applicant's non-previously published international patent application PCT/EP2019/051337, on 21.1.2019.

A scraping device 118 with (at least one) scraper 120 is arranged on the floor head. Here, the scraper 120 projects into the textile material of the coating 116 in order to be able to remove the soiling fluid from the cleaning roller 14.

Reference is made in this respect to WO 2015/086083 a1 described in detail for this purpose.

In this case, the wiper 120 is arranged at the opening 122 and in particular forms a wall of the opening, wherein the opening 122 is in fluid-active connection with the dirty fluid tank arrangement 84. Thereby, the dirty fluid that has left the scrub roller 14 can be conveyed into the dirty fluid tank arrangement 84.

The dirty fluid is conveyed into the dirty fluid tank device, in particular, without a pump or a fan, wherein in principle a fan for generating a suction flow can also be present.

In this case, it is provided in particular that the wiper 118 and/or the passage 122 are arranged on the dirty fluid tank arrangement 84 and can be removed, for example, together therewith.

Reference is made in this respect to WO 2019/029821 a 1. In particular, the scraping device 118 is arranged on the cover portion 98.

In operation of the floor cleaning machine 10, cleaning liquid is supplied from the tank arrangement 34 for cleaning liquid to the cleaning roller 14 via the supply device 40 in the floor head 12. The cleaning roller 14 is wetted with the cleaning liquid. The surface to be cleaned can also be wetted by the cleaning roller 14. Thereby enabling the dirt to be detached. Furthermore, the cleaning roller 14 acts mechanically on the surface 14 to be cleaned. The dissolved soil is carried by the scrub roller 14. The dirty fluid is scraped off of the cleaning roller 14 by the scraping device 118 and is conveyed into the dirty fluid tank device 84.

Reference is made in this respect in particular to WO 2017/153450 a1 and WO 2019/029821 a 1.

One or more sweeping elements 119 may be disposed on floor head 12 and, for example, on dirty fluid tank assembly 84. Exemplary reference is made in this respect to WO 2016/058956 a1 and WO 2016/058907 a 1.

The hinge 20 is also arranged on the bracket 42.

In one embodiment, a joint carrier 124 (see fig. 8) is provided, which is fixed to the carrier 42 and is positioned there 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 hinge bracket 24. They are spaced apart from each other.

The shaft 130 is connected in a rotationally fixed manner to the retaining rod 26. The shaft 130 is rotatably positioned on the first support foot 126 and the second support foot 128. The axis of rotation corresponds to the pivot axis 22.

The pivot axis 22 is positioned between the front end 78 and the rear end 108 of the bracket 42 and thus between the front end and the rear end of the floor head 12 with respect to the longitudinal axis 24.

With regard to the height direction 48, starting from the underside 86 of the floor head 12, the hinge 20 is arranged with a hinge support 124 above the dirty fluid tank arrangement 84, wherein the support 42 is located between the hinge 20 and the dirty fluid tank arrangement 84.

Support feet 126 and 128 are positioned symmetrically about the center plane of ground head 12 between first lateral side 74 and second lateral side 76. The holding device 18 is centrally and here symmetrically articulated on the floor head 12.

Furthermore, hinge 20 is positioned at least approximately centrally between front end 78 and rear end 108 with respect to longitudinal axis 24.

A cover 132 is mounted on the floor head 12 (see fig. 1 to 3), which covers the stand 42 upwardly. In fig. 4, the floor head 12 is shown without the cover 132.

The holding device 18 can be pivoted in relation to the floor head 12 in a pivoting angle range 134 (see fig. 2). The size of the pivoting angle range is, for example, 110 °.

For example, a maximum pivot angle of the retaining device 18 relative to the floor head 12 is reached when the retaining bar 26 is at least approximately parallel to the underside 86 of the floor head 12.

A parking position 136 (fig. 1) of the holding device 18 relative to the floor head 12 is provided for the hand-guided floor cleaning machine 10. The parking position 136 is a storage position for the floor cleaning machine 10 and in particular is not an operating position for a cleaning operation.

The parking position 136 can be ensured by a parking position holding device 138. The holding device 138 ensures that the holding device 18 is fixed to the floor head 12 in the parking position 136 in a non-positive or positive manner.

In one embodiment, the parking position holding device 138 is designed to hold a magnet device 140. For this purpose, one or more holding magnets 142 are arranged, for example, on the holding device 18. One or more engagement elements 144 are arranged on floor head 12 and in this case in particular on carrier 42. One or more holding magnets 142 can pivot with the holding device 18. One or more mating elements 144 are securely positioned on the floor head 12. When a particular pivot position, i.e. parking position 136 (see fig. 1), is achieved, one or more holding magnets 142 may cooperate with one or more mating elements 144 and achieve a force-fitting fixation of parking position holding device 138 on floor head 12. The parking position 136 is stable.

In particular, one or more engagement elements 144 are arranged, which do not interfere with the pivotability of the retaining device 18 during normal cleaning operation. The counter element 144 serves to some extent as a stop for the parking position 136, wherein this stop position is generally ensured as a parking position 136 by the holding device 138 and in particular by the holding magnet device 140.

For example, in the parking position 136, the longitudinal axis 28 of the retaining bar 26 is parallel to the height direction 48 or forms a small acute angle of, for example, 10 ° or 20 ° with the height direction 48 (see fig. 2).

In the floor cleaning machine 10, the support region 106 is arranged on the stand 42. In principle, it is also possible for the support region 106 to be arranged in the dirty fluid tank arrangement 84 and in particular to be removable therewith.

The scrub roller has a first end side 146 on the first portion 66. The scrub roller also has a second end side 148 (FIG. 9) in the second portion 68. The scrub roller extends between a first end side 146 and a second end side 148 in a direction along the rotational axis 70. At the intermediate region 150, the scrub roller 14 is separated, forming a first portion 66 and a second portion 68. At this intermediate region 150, the gear 16 is coupled to the cleaning roller 14 in a torque-acting manner.

The scrub roller 14 extends at least approximately between a first lateral side 74 and a second lateral side 76. The first end side 146 is on the first lateral side 146 or at most a small distance back in the direction of the axis of rotation 70. In the same way, the second end side 148 is situated in the second lateral side 46 or at most is set back by a small distance. This small distance of the cleaning roller 14 set back relative to the lateral sides 74, 76 is in particular at most 5% and in particular at most 1% of the width B of the floor head 12 between the first lateral side 74 and the second lateral side 76 (fig. 9).

A foot arrangement 152 is arranged on the floor head 12. The dirty fluid tank arrangement 84 has at least one through recess 154 associated with the foot arrangement 152.

The foot arrangement 152 is constructed and arranged mirror-symmetrically with respect to the center of gravity of the floor cleaning machine 10.

In the hand-guided floor cleaning machine 10, the dirty fluid tank arrangement 84 has spaced-apart through recesses 154a, 154b in the direction of the spacing between the first lateral side 74 and the second lateral side 76.

The through recesses 154a, 154b pass through the basin section 96 and the lid section 98. They form a "channel" through the dirty fluid tank assembly 84. Each of which has a wall 156, by means of which they are separated in a fluid-tight manner from the receiving space 104.

The recesses 154a, 154b are arranged between the support region 106 and the scrub roller 14 with respect to the longitudinal axis 24 of the floor head 12.

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

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

In one embodiment, they are positioned between the recess 90 and the front end 78 of the carrier 42 about the longitudinal axis 24.

The through recesses 154a, 154b are located in the vicinity of the respective first or second transverse side 74, 76 and are displaced slightly inwards there.

It is also possible, as illustrated in fig. 9, to form a recess 155 as a notch on the dirty fluid tank arrangement 84, which recess is open to the lateral side.

Recesses 155 as notches (recesses) can also be positioned on the corner regions and open to both lateral sides.

With respect to the width direction 158 of the floor head 12, the through recess 154a is spaced apart from the nearest first lateral side 74. The through recess 154b is spaced apart from the nearest second lateral side 76 in the width direction 158. The distance between the through recesses 154a, 154b in the width direction 158 is smaller than the corresponding length of the cleaning roller 14 in the width direction 158, wherein the length of the cleaning roller 14 is the length in the width direction 158 between the first end side 146 and the second end side 148.

As will be explained in more detail below, this arrangement of the through- recesses 154a, 154b results in a secure erection of the cleaning roller 14 in the parking position with lifting. In the cleaning operation of the floor cleaning machine 10, the foot arrangement 152 does not interfere with the cleaning operation. In particular, a cleaning operation close to the edge can be achieved, since the cleaning roller 14 reaches at least approximately at the lateral sides 74, 76. The foot arrangement 150 does not adversely affect the structure of the floor head 12 that is optimized for an optimized cleaning process.

Recesses 160a, 160b corresponding to the through recesses 154a, 154b are arranged on the holder 42. The through recess 154a continues in a recess 160a in the holder 42; the through recess 154b continues in the recess 160 b. As a result, a passage is formed between the top side 44 and the bottom side 46 of the support 42 and between the top side 44 of the support 42 and the bottom side 86 of the dirty fluid tank arrangement 84, and thus the floor head 12.

The hand guided floor cleaning machine 10 has a parking position 162 (fig. 1 to 4). In this parking position 162, the scrub roller 14 is lifted from the placement surface 16 by the foot device 152. The floor cleaning machine 10 is supported on the standing surface 16 via the floor head 12 by means of the support region 106 and the foot arrangement 152. The cleaning roller 14 does not touch the placement surface 16. It is thus possible to avoid the cleaning roller having a "parking deformation". Furthermore, damage to the floor surface to be cleaned can be prevented, since the floor surface (mounting surface 16) does not come into contact with the cleaning roller 14 and also does not come into contact with the cleaning agent or cleaning liquid on the cleaning roller 14. Furthermore, the drying of the cleaning roller 14 can be improved during non-operation of the floor cleaning machine 10.

The parking position 162 of the floor cleaning machine 10 is generally associated in particular with the parking position 136 of the holding device 18 relative to the floor head 12.

Foot means 152 is pivotably arranged on ground head 12 by means of a hinge 164. The hinge 164 is located next to the support 42 and there on the upper side 44. Thus, the hinge 164 is positioned above the dirty fluid tank arrangement 84 in the height direction 48.

The hinge 164 has a pivot axis 166 (fig. 4). The pivot axis 166 is substantially parallel to the width direction 158. Which is parallel to the pivotable pivot axis 22 of the retaining device 18 on the floor head 12. The pivot axis is also parallel to the rotational axis 70 of the scrub roller 14. Which is transverse and in particular perpendicular to the longitudinal axis 24 of the floor head 12. The pivot axis is also transverse and in particular perpendicular to the height direction 48 of the floor head 12.

The hinge 164 is arranged such that it is positioned between the front end 78 and the rear end 108 of the bracket and is closer to the rear end 108 than to the front end 76. The hinge is arranged in the region of the receptacle 52 of the bracket 42 and is positioned between the receptacle 52 and the rear end 108.

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

In one embodiment, it is provided that, in order to maintain the pivotability of device 18 relative to floor head 12, pivot axis 166 of hinge 164 is closer to bracket 42 than pivot axis 22 with respect to height direction 48.

The leg arrangement 152 comprises an arcuate member 168 (fig. 4, 8) which is hinged directly to the hinge 164.

First and second arms 170a, 170b are spaced apart on bow 168. The bracket 160 is formed in a fork-like manner with arms 170a, 170 b. Between the first arm 170a and the second arm 170b, the drive device 50 with its housing 56 is positioned, and the hinge support 124 with the hinge portion 20 is positioned.

Here, the first arm 170a and the second arm 170b are disposed above the bracket 42.

The first leg 172a is disposed on the first arm 170 a. The second leg 172b is disposed on the second arm 170 b. The first leg 172a sinks at least partially through the recess 160a, 154a (or 155) (see below). The second leg 172b is at least partially sunk through the recesses 160b, 154 b.

Depending on the pivotal position of the foot arrangement 152, the feet 172a, 172b project beyond the underside 86 (fig. 1 to 4) of the floor head 12 or do not project beyond the underside (fig. 5 to 7).

When the feet 172a, 172b are extended beyond the underside 86 of the floor head 12 and secured accordingly (see below), then the parked position 162 (fig. 1-4) of the floor cleaning machine 10 is achieved. The feet 172a, 172b are supported on the mounting surface 16 (fig. 1 to 4) and the scrub roller 14 is lifted from the mounting surface 16.

A handling mechanism 174 is provided which links the positioning of the foot arrangement 152 in achieving the parking position 136 with the pivoting positioning of the holding arrangement 18 relative to the cleaning roller 14.

For this purpose, tongues 176 are arranged on the bow 168. The tongue 176 is positioned between, and in particular centrally between, the first arm 170a and the second arm 170 b. The tongues are oriented in the direction of the cleaning roller 14. Tongue 176 (see fig. 4) is arranged above hinge bracket 124 with respect to height direction 48 and is positioned here between first support foot 126 and second support foot 128. With respect to the height direction 48, the tongue 176 is arranged below the pivot axis 22 (see fig. 4). The tongues 176 are connected to the bracket 168 in a rotationally fixed manner and can pivot therewith. A force (torque) is introduced via the tongue 176 in order to facilitate the pivoting movement of the leg arrangement 152.

The rib 178 is seated against rotation on the shaft 130 of the holding device 18 (fig. 4, 7, 8). The rib is rotatable with the retaining means 18 about the pivot axis 22.

The projection 180 is disposed on the shaft 130. The projection 180 is rotatably held on the shaft 31 by a hinge 182. The axis of rotation 184 of the cam 180 coincides here with the pivot axis 22.

For example, the hinge 182 includes a hinge ring 186 by which the tab 180 can rotate about the rotation axis 184.

The cam 180 is positioned between the first support leg 126 and the second support leg 128 and is positioned above the tongue 176 in the height direction 48. The rib 178 can act on the projection 180, wherein the projection 180 can in turn act on the tongue 176 and thus on the leg arrangement 152.

The ribs 178 and the projections 180 are spaced apart from each other. The rib 178 can act on the cam 180 only in a specific pivot position and also only in a specific pivot direction.

In particular, it is provided that the projection 180 rests somewhat against the tongue 126. When the rib 178 does not act on the projection 180, the projection 180 then rests "loosely" on the tongue 176 without a particular torque being applied and no force is applied to the foot arrangement 152 which can establish the start-stop position 136.

Such a position is shown in fig. 7.

When the retaining device 18 is pivoted in the pivoting direction 188 (see fig. 7), the rib 178 comes into contact with the projection 180 from a certain pivoting angle range. As the retainer 18 continues to pivot, the rib 178 applies a force to the tab 180 and rotates the tab about the rotational axis 184. The cam 180 in turn acts on the tongue 176 and pivots the leg arrangement 152 (the bracket 168 with the arms 170a, 170b and the legs 172a, 172b) in the corresponding pivot direction 190.

When not in the parked position 162, the legs 172a, 172b are at least partially recessed into the recesses 160a, 154a or 160b, 154b (fig. 7), but do not project beyond the underside 86. There is an unsupported position.

Due to the corresponding pivoting in the pivoting direction 190, the legs 172a, 172b are moved beyond the underside 86 via the application of force by the holding device 18. The respective movability of the legs 172a, 172b with a component in the height direction 48 is illustrated in fig. 4 and 7 by a double arrow with reference numeral 192.

The parking location 162 is also the parking location 162 of the leg arrangement 162. Thus, the feet 172a, 172b project beyond the underside 86 of the floor head 12 (dirty fluid tank arrangement 84) to provide support on the underlying surface and lift the scrub roller 14.

When the holding device 18 has reached its parking position 136, the parking positioning 162 is achieved. At the same time, the parking position 162 of the foot arrangement 152 is also fixed by the parking position 136 of the holding arrangement 18. In the parking position 136 of the retaining device 18, the retaining device is connected, for example, non-positively, to the floor head 12. The actuating mechanism 174 is dimensioned as follows: so that the rib 178 acts on the projection 180 (which is constantly acting in the parking position 136) and correspondingly on the tongue 176 in order to fix the parking position 162.

A spring device 194 acting on the foot device 152 is arranged on the floor head 12 (see fig. 3 and 6). The spring device 194 is arranged and constructed as follows: so that it is directed to pivot the foot means 152 in the opposite direction relative to the pivoting direction 190. The spring device 194 is in particular designed as a tension spring device, which is intended to pull the foot device 152 away from the upper side 44 of the support 42.

In order to make it possible for the foot means 152 to pivot into the parking position 162, the force of the spring means 194 has to be overcome.

When the parking position 136 of the holding device 18 is canceled, in which the holding device is moved out of the parking position 136 against the pivoting direction 188, the rib 178 no longer acts on the cam 180 from a specific pivoting angle range. The spring arrangement 194 then pivots the leg arrangement 152 against the pivoting direction 190. As a result, the legs 172a, 172b are pulled back with a movement component parallel to the height direction 48 and thus no longer project beyond the underside 86 of the floor head 12 in particular. The cleaning roller 14 is thus lowered and a cleaning operation of the floor cleaning machine 10 is possible. There is no longer support by the legs 172a, 172 b.

The hand-guided floor cleaning machine 10 operates as follows:

in the parking position 162 (fig. 1 to 4) of the floor cleaning machine 10, the floor cleaning machine 10 is supported on the standing surface 16 by the floor head 12 in such a way that the cleaning roller 14 is lifted off the standing surface 16. Thus, the parking deformation of the cleaning roller 14 is prevented, which can improve the drying of the cleaning roller 14 and avoid damage to the floor.

In the parking position 162, the floor cleaning machine is supported on the standing surface 16 by the floor head 12, wherein it is supported by the support region 106 and the feet 172a, 172b of the foot arrangement 150.

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

In the parking position 136 of the holding device 18, the rib 178 contacts the projection 180 and presses the projection onto the tongue 176. The corresponding force ensures the parking position 162.

In order to be able to move the floor cleaning machine 10 out of the parking position 162 and start operation, the retaining device 18 is pivoted about the pivot axis 22 in the pivoting direction 188' (fig. 1). Here, the pivoting direction 188' is the opposite direction of the pivoting direction 188. Upon this pivoting, the holding device 18 is pivoted away from the cleaning roller 14.

From a particular pivot angle, the rib 178 no longer contacts the tab 180. The tab becomes "loose" to some extent and the tab only rests loosely on the tongue 176 without significant force being applied.

The force of the spring means 194 causes the foot means 152 to be pulled upwards and thus away from the standing surface 16. The legs 172a, 172b are pivoted or moved away from the placement surface 16 and are sunk into the recesses 154a, 154b already before they touch the respective front end of the placement surface 16.

The floor head 12 is thereby lowered onto the underlying surface 16 until the scrub roller 14 touches the underlying surface. The floor head 12 is then supported on the placement surface 16 via the support region 106 and the cleaning roller 14.

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

Preferably, it is provided that, when the respective position is reached, the legs 172a, 172b no longer project beyond the underside 86 of the floor head 12 (fig. 5 to 7).

Subsequently, a cleaning operation of the floor cleaning machine 10 is possible.

During a cleaning operation of the floor cleaning machine 10, the cleaning roller 14 is driven in a rotating manner by the drive 50. Here, cleaning liquid (water with or without, for example, a surface-active cleaning agent) from the tank arrangement 34 is conveyed via a conveying device 40. In particular, the cleaning roller 14 is directly wetted.

In particular there is a pull in direction 80.

The cleaning roller applies cleaning liquid to the area to be cleaned on the placement surface 16. Furthermore, there is a mechanical effect. Dirt can be loosened, carried by the scrub roller 14 and scrubbed via the scrubbing device 118 and carried into the dirty fluid tank arrangement 84.

After the cleaning process is ended, the operator pivots the holding device 18 in the pivot direction 188 into the parking position 136. From a particular range of pivoting angles, the rib 178 can act on a cam 180, which in turn guides the torque on the tongue 176 into the leg arrangement 152. The foot arrangement 152 is pivoted in the pivoting direction 190, the feet 172a, 172b being moved out of the way and then being supported on the placement surface 16. The cleaning roller 14 is lifted. This lifting is effected automatically as a result of the holding device 18 being pivoted into the parking position 136 by the operator.

The legs 172a, 172b are directed through the dirty fluid tank arrangement 84. The floor head 12 can thus be designed optimally for the cleaning process. The scrub roller 14 can extend up to the lateral sides 74, 76. Furthermore, the floor head can be designed with a relatively small height in the height direction 48, in particular in the region of the front end 78, so that an optimized passage is achieved underneath furniture and the like.

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

In the above embodiments, a mechanical coupling of the holding device 18 with the foot device 152 is provided. It is also possible that there is no mechanical coupling, but rather a coupling in which the signal is effective. For example, a sensor device is provided which knows whether the holding device 18 is brought into the parking position or is in the parking position. With corresponding sensor signals, the leg arrangement 152 is brought into the parking position 162, for example by an electric motor.

With the holding device 18 being pulled out of the parking position 136, the foot device 152 is correspondingly pivoted out of the supporting position (parking position 162) by the electric motor.

The dirty fluid tank arrangement 84 can be designed with a small height in the height direction 48 in the case of large accommodation volumes. Due to the recesses 154a, 154b, the parking position 162 can be achieved in a simple manner by the foot arrangement 152 even in the case of a dirty fluid tank arrangement 84 arranged on the floor head 12. For this purpose, it is not necessary, for example, to increase the width of the floor head 12 in the width direction 158 beyond the end sides 146, 148 of the cleaning roller 14.

The solution of the foot leading through the dirty fluid tank arrangement can also be applied in a cleaning robot, for example. In particular, a self-propelled and self-steering floor cleaning appliance can be provided, having a floor head, at least one cleaning roller arranged on the floor head, a dirty fluid tank arrangement arranged on the floor head, and a foot arrangement arranged on the floor head, wherein in a parking position of the floor cleaning appliance the floor head is supported on a standing surface such that the at least one cleaning roller is spaced apart from the standing surface, wherein the dirty fluid tank arrangement has at least one through-recess through which the feet of the foot arrangement sink at least in the parking position.

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

Another embodiment of a hand-guided floor cleaning machine 202 according to the invention is shown in partial view in Figs. 11 to 18. Only a part of the respective retaining device for the hand-guided floor cleaning machine 202 is shown here. Figures 15 to 18 show the parked position of the floor cleaning machine; fig. 11 to 14 show the position of the holding device relative to the floor head 204 when it is not in the parking position.

The floor head 204 is constructed largely identically to the floor head 12 of the floor cleaning machine 10. The same reference numerals are used for the same elements as the ground head 102.

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

The holding device 206 has a holding rod (not shown in fig. 11 to 18) corresponding to the holding rod 26. The holding device has an extension with a longitudinal axis, which corresponds to the longitudinal axis 28.

The holding device 206 is pivotably articulated to the floor head 204 by means of an articulation 208.

The articulation means 208 comprise a first articulation 210 by which the holding means 206 is articulated to the ground head 204 in a pivotable manner about a pivot axis 212.

The pivot axis 212 is perpendicular to the longitudinal axis 28. The pivotal position of the retaining device 206 at the first hinge 210 determines the height of the hand guided floor cleaning machine 202 between the underside of the floor head 204 and the upper side of the retaining device 206. The difference between the solutions shown in fig. 11 to 14 on the one hand and fig. 15 to 18 on the other hand is the pivot position of the retaining device 206 about the 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 retaining device 206 in a rotationally fixed manner, which is in each case supported at the first articulation 210 and makes pivotability about the pivot axis 212 possible.

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

The hinge assembly 208 includes a second hinge portion 216. The second hinge 216 is disposed on the first hinge 210. The holding device 206, and in particular the holding rod corresponding to the holding rod 26 (which has an arcuate grip corresponding to the arcuate grip 30), can be rotated about a rotation axis 218 by means of the second articulation 216, which is parallel to the longitudinal axis 28. The axis of rotation 218 is thus oriented perpendicular to the pivot axis 212.

The corresponding rotatability of the holding device 206 about the axis of rotation 218 at the second articulation 216 is illustrated in fig. 11, 12 by a double arrow with reference numeral 220.

The rotatability of the holding device 206 about the axis of rotation 218 is an additional movability of the holding device 206 relative to the floor head 204 and in particular makes possible a rotary orientation of the respective arcuate handle 30 of the holding device 206 relative to the floor head 204. Thus, a convenient cleaning possibility is obtained.

In particular, besides the parking position 222 (which corresponds to the parking position 136 in the floor cleaning machine 10), a rotatability of the holding device 206 about the rotational axis 218 is possible in any pivot position of the holding device 206 about the pivot axis 212. The corresponding parking position 222 is shown in fig. 15 to 18.

In one exemplary embodiment, it is provided that, in relation to an initial position in which the angle of rotation is zero, the holding device 206 can be rotated about the axis of rotation 218 by an angle of up to ± α, α in particular being at least 30 °. The initial position is the following: in this position, the arcuate handle 30 is oriented parallel to the longitudinal axis 224 of the floor head 204. This longitudinal axis 224 in the floor head 204 corresponds to the longitudinal axis 24 in the floor head 12 of the floor cleaning machine 10.

The floor head 204 has a stand 226 which corresponds to the stand 42 of the floor head 12. The holder 226 is configured in particular as a holding plate. On the stand, the housing 228 rests on the upper side.

The housing has an opening 230, wherein the opening 230 is positioned on the upper side of the housing 228. In the region of this opening 230, the hinge device 208 rests on the floor head 204 and the retaining device 206 is lowered in sections through the opening 230 into the housing 228.

A tank arrangement corresponding to the tank arrangement 84 is arranged on the underside of the support 226 facing away from the housing 228.

In addition, a motor corresponding to the motor 54 is mounted on the bracket 226. A transmission corresponding to the transmission 60 is provided for transmitting torque from the motor 54 to the scrub roller 14.

In addition, a foot device corresponding to foot device 152 is arranged on support 226. The leg arrangement has legs corresponding to legs 172a, 172 b. The leg arrangement 152 includes a tab corresponding to the tab 176.

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

In the floor cleaning machine 202, the retaining device 206 includes a first portion 232 (see, e.g., fig. 14). A handle, such as arcuate handle 30, is disposed on the first portion 232. The retaining device also includes a second portion 234. A shaft 214 is disposed on the second portion 234. The second portion 234 is hinged to the ground head 204 by a first hinge 210. The second portion 234 is pivotable relative to the ground head 204 about the pivot axis 212. With respect to the rotation axis 218, the second portion 234 is anti-rotation relative to the ground head 204.

The second portion 234 is rotatably connected to the first portion 232 about the rotational axis 218 by a second hinge 216. The second portion 234 is by this arrangement pivotable relative to the ground head 204 about the pivot axis 212 and rotatable relative to the ground head 204 about the rotation axis 218.

In principle, it is also possible for the holding device 206 to be hinged to the floor head 204 in such a way that it can be pivoted as a whole (about the pivot axis 218). In this embodiment, in particular, the respective hinge can also be pivoted by means of the pivot axis 212, which in the floor cleaning machine 202 is rotationally fixed relative to the floor head 204 about the pivot axis 218.

A rocker arm 236 is arranged on the holding device 206 and here on the first part 232 in a rotationally fixed manner (see for example fig. 13). The rocker arm 236 is pivotable about the pivot axis 212 by pivoting of the retaining means 206. With respect to the rotation axis 218, the swing arm is anti-rotation relative to the ground head 204. The rocker arm 236 is pivotally positioned in the housing 228 about the pivot axis 212.

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

The rocker arm 236 is positioned outside the shaft 214; a shaft 214 (for pivotally supporting the retaining device 206 having the pivot axis 212 on the ground head 204) is disposed between the rocker arm 236 and the second hinge 216.

A holding magnet 238 is disposed on one end of the rocker arm 236. The holding magnet 238 is pivotally disposed within the interior space of the housing 228 with the rocker arm 236. Here, the pivoting movement is caused by a pivoting movement of the holding device 206.

The holding magnet 238 forms together with the mating element 240 a holding magnet arrangement 242. The parking position 222 of the floor cleaning machine 202 can be fixed by the holding magnet arrangement 242 (fig. 15 to 18).

The mating element 240 is a metal plate that cooperates with the holding magnet 238 (in the parked position 222). The mating element 240 is arranged securely (and in particular non-pivotably about the pivot axis 212) in the housing 28.

For example, the mating element 240 is arranged in a manner oriented at an acute angle 244 with respect to the height axis 46 of the ground head 204.

In the parking position 222 (see in particular fig. 17), the holding magnet 238 bears against the mating element 240 and the parking position 222 is secured magnetically in a force-fitting manner. The holding magnet arrangement 242 with the mating element 240 and the holding magnet 238 ensures this parking position in the parking position 222, so that the holding arrangement 206 is fixed vertically (non-positively) relative to the floor head 204.

For example, in the parked position 222 (see fig. 17), the retaining device 206 is oriented at an acute angle 248 with respect to its longitudinal axis 28 and the height axis 246. The acute angle 248 is, for example, 20 °.

For example, it is also possible for the retaining device 206 to be oriented at least approximately parallel to the height axis 246 (and the acute angle 248 to be in the vicinity of 0 °).

The holding magnet arrangement 242 prevents the holding arrangement 206 from falling back in the pivoting direction 250 according to fig. 17 in the parking position 222.

In one embodiment, the mating element 240 is arranged with respect to the holding magnet 238 as follows: so that a stop 252 (fig. 17) is formed which limits the maximum pivoting angle and which defines the parking position 222 in the opposite direction 254 of the pivoting direction 250. When the holding magnet 238 mechanically stops against the mating element 240, then the maximum pivot angle of the first hinge portion 210 relative to the pivot axis 212 is reached and further pivoting in the opposite direction 254 is no longer possible due to the stop 252 (fig. 17).

Starting from a pivoted position (with respect to the pivot axis 212) of the retaining device 206 that is not the parking position 22 (see, for example, fig. 13), the retaining device 206 can be pivoted in the opposite direction 254 until the stop 252 is activated and the retaining magnet 238 on the rocker arm 236 stops on the mating element 240. The maximum pivot angle and thus also the parking position 222 is reached. The parking position 222 is automatically secured against pivoting back (rocking back) in the pivoting direction 250 by the holding magnet arrangement 242 in a force-locking manner.

A holding magnet arrangement 242 with a mating element 240 and a holding magnet 238 is arranged in the housing 228. This makes it possible to keep the overall height of the floor head 204 in the direction of the height axis 246 small and to achieve good accessibility under furniture or the like.

The configuration of the holding magnet arrangement 242 does not depend on whether the rotatability of the holding arrangement 206 or the rotatability about the axis of rotation 218 at the holding arrangement 206 is provided.

A cover 256 is arranged on the floor head 204 or the cover 256 is associated with the floor head 204. The hood 256 is movable with the holder 206 with respect to pivoting about the pivot axis 212. With regard to the rotatability about the rotation axis 218, the cover 256 is rotationally fixed relative to the floor head 204 or relative to the first part 232 of the holding device 206.

A rib 258 is disposed on the first portion 232 of the retaining device 206. The rib 258 (see, for example, fig. 14 and 18) corresponds in functional manner to the rib 178 of the floor cleaning machine 10.

Furthermore, a cam 260 is arranged on the first part 232 of the holding device 206 in a rotatable manner. The cam 260 corresponds in functional manner to the cam 180 in the floor cleaning machine 10.

As in the floor cleaning machine 10, the rib 258 acts on the cam 260 from a specific pivot angle range (with respect to the pivot axis 212) (see fig. 18) and moves it onto the tongue 176 of the foot arrangement 152 (using the same reference numerals as in the floor cleaning machine 10).

Thereby causing the legs 172a, 172b to be brought into the parked position 162 (fig. 15-18).

The operation is described in the same way as for the floor cleaning machine 10.

A raised area 262 is disposed on the tab 260. The raised area 262 can rotate with the projection 260.

The raised area 262 forms a guide rail 264 for a curved partial area 266 of the cap 256.

The hood 256 is disposed on the first portion 232 such that the hood can pivot with the first portion when pivoting about the pivot axis 212. Here, the cover is arranged at the region of the retaining device 206 facing away from the floor head 204 (see, for example, fig. 14).

On the holding device 206, the first form-locking element 268 is arranged on the second part 234 (rotatable about the axis of rotation 218 with respect to the first part 232). In the embodiment shown, the first form-locking element 268 is designed as a recess.

A second form-locking element 270 is arranged on the cover 256 at a distance from the curved partial region 266, which second form-locking element is provided for cooperation with the first form-locking element 268.

In the illustrated embodiment, the second form-locking element 270 is a pin which is provided for sinking into the first form-locking element 268 (in the parking position 222).

A spacer bracket 272 is arranged on the holding device 206 and here on the second part 234. The spacer bracket 272 is used to: the second form-locking element 270 is kept spaced apart from the first form-locking element 268 without the parking position 222, so that a form-locking connection is not established between the cap 256 and the holding device 206 (by the form-locking elements 268, 270) without the parking position.

In one embodiment, the spacer bracket 272 is a pin 274 that is resiliently supported by a spring 276. Here, a spring 276 is arranged and embodied, which contributes to: as long as there is no corresponding counter force, the pin 274 is pressed in the direction of the cover 256 and in the process prevents the second form-locking element 270 from sinking into the first form-locking element 268. As will be explained further below, this counter force is present in the parking position 222.

In the case of the non-parking position 222 (see, for example, fig. 14), the cap 256 rests partially on the raised area 262 with a curved partial area 266. This also forms the space maintaining portion. The second form-locking element 270 is not sunk into the first form-locking element 268. Thus, a rotatability of the holding device 206 about the axis of rotation 218, that is to say a rotatability of the first part 232 relative to the second part 234, is possible. The rotatability is not blocked.

When the holding device 206 is brought into the parking position 222 (see, for example, fig. 18), the cap 256 is also moved together with a corresponding pivoting movement. The curved partial region 266 is guided on the guide rail 264 until it abuts the raised region 262 (i.e. the cam 260). In the parking position 222, a corresponding counter force to the force of the spring 276 is exerted by the stop 278, which presses the cover 256 against the pin 274 and reduces the spacing there. The pin 274 is pressed back into its guide to some extent. As a result, an intrusion of the second form-locking element 270 into the first form-locking element 268 is possible and a form-locking connection is achieved. This form-locking connection blocks the rotatability of the holding device 206 about the axis of rotation 218. This is illustrated in fig. 18 by the solid double arrow 280. The rotatability about the axis of rotation 218 is blocked.

The cover 256 is designed in its geometric design with the curved partial region 266 with respect to the spacer bracket 272 in such a way that its spacing relative to the holding device 206 is reduced when it is transferred into the parking position 222, in order to automatically achieve a positive connection between the first form-locking element 268 and the second form-locking element 270 (with the correct orientation of the holding device 206 with respect to the rotational axis 218). The cam 260 with its raised area 262 is correspondingly configured to achieve this fixed position in the parking position 222 in cooperation with the stop 278 on the housing 228.

The floor cleaning machine 202 works with regard to the pivotability and rotatability of the holding device 206 as follows:

in the case of a non-parking position 222, the holding device 206 can be pivoted about the pivot axis 212 in order to enable correspondingly optimized operation. Furthermore, a rotatability of a part of the holding device 206 around the rotation axis 218 at the second hinge 216 is possible. In particular, the arcuate handle 30 can thereby be oriented relative to the floor head 204 in accordance with the cleaning process.

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

During the transfer into the parking position 222, the cover 256 follows and forms a form-locking connection in the parking position 222 in order to block the rotatability about the axis of rotation 218 on the holding device 206.

Furthermore, the parking positioning 162 of the legs 172a, 172b is achieved when transitioning into the parking position 222. From the particular pivot position, the rib 258 acts on a cam 260, which in turn acts on the tongue 176 of the leg arrangement 152.

In the parking position 222, the parking position 162 of the foot arrangement 152 is fixed.

Furthermore, the dynamics relating to the ribs 258 and the cams 260 are designed such that in the parking position 222 a corresponding form-locking fastening position is achieved by the cover 256, which blocks the rotatability about the axis of rotation 218.

In other respects, the floor cleaning machine 202 operates as the floor cleaning machine 10.

List of reference numerals

10 hand-guided floor cleaning machine

12 ground head

14 cleaning roller

16 placing surface

18 holding device

20 hinge part

22 pivot axis

24 longitudinal axis (of the ground head)

26 holding rod

28 longitudinal axis of the holding device

30 bow-shaped handle

32-cell device

34 tank arrangement for cleaning liquids

36 support

38 support

40 conveying device

42 ground head support

44 upper side

46 lower side

48 height direction

50 driving device

52 accommodating part

54 motor

56 casing

58 motor axis

60 driving device

62 first shaft

64 second shaft

66 first part

68 second part

70 axis of rotation

72 middle area

74 first lateral side

76 second lateral side

78 front end portion

80 direction

82 direction of rotation

84-tank unit (in the embodiment, dirty fluid tank unit)

86 lower side

88 fixing device

90 tongue

92 concave part

94 direction of removal

94' take-down direction

96 basin part

98 cover part

100 bottom

102 concave part

104 accommodating space

106 support area

108 rear end portion

110 roller

112 recess

114 bearing element

116 coating

118 scraping device

119 sweeping element

120 scraper

122 port

124 hinged support

126 first hinge leg

128 second hinge leg

130 axle

132 cover

134 angular range of pivoting

136 parked position

138 park position holding device

140 holding magnet arrangement

142 holding magnet

144 mating element

146 first end side

148 second end side

150 middle region

152 foot arrangement

154 through recess

154a penetrating recess

154b penetrating recess

155 through concave part

156 wall of the vessel

158 width direction

160a recess

160b recess

162 parking location

164 hinge

166 pivoting axis

168 arcuate member

170a first arm

170b second arm

172a first leg

172b second leg

174 operating mechanism

176 tongue

178 Rib

180 convex block

182 hinge part

184 axis of rotation

186 hinge ring

188 pivoting direction

188' direction of pivoting

190 direction of pivoting

192 mobility

194 spring device

202 hand-guided floor cleaning machine

204 floor head

206 holding device

208 hinge assembly

210 first hinge part

212 pivot axis

214 shaft

216 second hinge part

218 axis of rotation

220 double arrow

222 parking position

224 longitudinal axis

226 bracket

228 casing

230 opening

232 first part

234 second part

236 rocker arm

238 holding magnet

240 mating element

242 holding magnet device

Acute angle of 244

246 height axis

248 acute angle

250 direction of pivoting

252 stop

254 reverse direction

256 covers

258 rib

260 convex block

262 raised region

264 guide rail

266 curved partial region

268 first form-locking element

270 second form locking element

272 spacer bracket

274 pin

276 spring

278 stop

280 double arrow

Claims (47)

1. A floor cleaning machine, the floor cleaning machine comprising: a ground head (12; 204); at least one cleaning roller (14) arranged on the floor head (12; 204); a tank arrangement (84) arranged on the ground head (12; 204); and a movable foot arrangement (152) 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 a standing surface (16) by means of the foot arrangement (152) such that the at least one cleaning roller (14) is spaced apart from the standing surface (16), characterized in that the tank arrangement (84) has at least one through-recess (154a, 154 b; 155) through which the foot (172a, 172b) of the foot arrangement (152) sinks at least in the parking position (162).

2. A floor cleaning machine according to claim 1, characterized in that the foot arrangement (152) has at least one first foot (172a) and a second foot (172b) spaced apart from the first foot (172a), which have at least one of the following features:

-said first leg (172a) and said second leg (172b) are spaced apart from each other in a spacing direction parallel to a pivot axis (22) of a retaining device (18) relative to said floor head (12; 204);

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

-the tank arrangement (84) is removable from the floor head (12; 204) in a removal direction (94; 94 ') and the first leg (172a) and the second leg (172b) are spaced apart from each other in a spacing direction transverse to the removal direction (94; 94').

3. A floor cleaning machine as claimed in claim 1 or 2, characterized in that a support region (106) of the floor head (12; 204) for the placement surface (16) is arranged or formed on the floor head (12; 204) or the tank arrangement (84), which support region is spaced apart from the at least one cleaning roller (14), wherein the support region (106) is arranged in particular on a rear end (108) of the floor head (12; 204) or the tank arrangement (84) facing away from the at least one cleaning roller (14).

4. A floor cleaning machine as claimed in claim 3, characterized in that the support region (106) has at least one sliding element or at least one rolling element (110).

5. A floor cleaning machine as claimed in claim 3 or 4, characterized in that at least one foot (172a, 172b) is spaced apart from the support region (106) and is arranged in particular with respect to the longitudinal axis (24) of the floor head (12; 204) between the at least one cleaning roller (14) and the support region (106).

6. A floor cleaning machine as claimed in any one of claims 3 to 5, characterized in that, in cleaning operation, the floor head (12; 204) is supported on a standing surface (16) by means of the support region (106) and the at least one cleaning roller (14).

7. A floor cleaning machine as claimed in one of claims 3 to 6, characterized in that in the parking position (162) the floor head (12; 204) is supported on a standing surface (16) by means of the support region (106) and at least one foot (172a, 172b), wherein the at least one cleaning roller (14) is lifted from the standing surface (16).

8. A floor cleaning machine as claimed in any one of the preceding claims, characterized by a holding device (18; 206) for guiding the floor cleaning machine.

9. A floor cleaning machine as claimed in claim 8, characterized in that the retaining device (18; 206) is pivotably articulated on the floor head (12; 204) about a pivot axis (22; 212).

10. A floor cleaning machine as claimed in any one of the preceding claims, characterized in that the floor head (12; 204) has a stand (42; 226) with at least one of the following features:

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

-said at least one cleaning roller (14) is held on said support (42; 226);

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

-a holding device (18; 206) for an operator is pivotably supported on the bracket (42; 226);

-the foot arrangement (152) is movably and in particular pivotably supported on the stand (42; 226);

-in the height direction (48; 246) of the ground head (12; 204), the bracket (42; 226) is between the pivot axis (166) of the foot arrangement (152) and the tank arrangement (84);

-the bracket (42; 226) is or comprises a holding plate.

11. A floor cleaning machine as claimed in any one of the preceding claims, characterized in that the foot arrangement (152) is pivotably supported on the floor head (12; 204).

12. A floor cleaning machine as claimed in claim 11, characterized in that, with respect to the height direction (48; 246) of the floor head (12; 204), a part of the foot arrangement (152) is arranged above the tank arrangement (84) away from the underside (86) of the floor head (12; 204), wherein in the parking position (162) the underside (86) faces towards the standing surface (16).

13. A floor cleaning machine as claimed in claim 11 or 12, characterized by at least one of the following features:

-the pivot axis (166) of the foot means (152) is parallel to the pivot axis (22; 212) of the retaining means (18; 206) on the ground head (12; 204);

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

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

-the pivot axis (166) of the foot means (152) is positioned between the pivot axis (22; 212) of the holding means (18; 206) and the rear end (108) of the ground head (12; 204) with respect to the longitudinal axis (24) of the ground head (12; 204);

-in relation to the height direction (48; 246) of the floor head (12; 204), the pivot axis (166) of the foot device (152) is located lower away from the underside (86) of the floor head (12; 204) than the pivot axis (22; 212) of the holding device (18; 206), wherein in the parking position (162) the underside (86) faces towards the resting surface (16).

14. A floor cleaning machine as claimed in any one of claims 11 to 13, characterized in that the foot arrangement (152) has a bow (168) which is pivotably articulated on the floor head (12; 204), the bow having at least one of the following features:

-at least one first arm (170a) and a second arm (170b) are arranged spaced apart on the bow (168);

-at least one first leg (172a) is arranged on the first arm (170 a);

-at least one second leg (172b) is arranged on the second arm (170 b);

-the first arm (170a) and/or the second arm (170b) is directed in the direction of the at least one cleaning roller (14);

-the bow (168) encloses a region with a first arm (170a) and a second arm (170b) in a fork-like manner, at which region the drive (50) for the at least one cleaning roller (14) rests on the floor head (12; 204);

-the bow (168) and in particular the first arm (170a) and the second arm (170b) are positioned above the tank arrangement (84) in the height direction (48; 246) of the floor head (12; 204).

15. A floor cleaning machine as claimed in claim 14, characterized in that at least one tongue (176) is arranged on the bow (168), in particular it can be acted on by a holding device (18; 206) for an operator.

16. A floor cleaning machine as claimed in claim 15, characterized by at least one of the following features:

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

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

-the at least one tongue (176) is directed away from the bow (168) in the direction of the at least one cleaning roller (14);

-said at least one tongue (176) is arranged symmetrically with respect to the lateral sides (74, 76) of the ground head (12; 204);

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

-said at least one tongue (176) is arranged in the region of a hinge (20; 210) by means of which the holding device (18; 206) is pivotably hinged to the floor head (12; 204);

-the hinge (20; 210) for the holding device (18; 206) comprises a first hinge leg (126) and a second hinge leg (128) spaced apart from the first hinge leg (126), wherein the at least one tongue (176) is positioned between the first hinge leg (126) and the second hinge leg (128).

17. A floor cleaning machine as claimed in claim 15 or 16, characterized in that the retaining device (18; 206) is coupled with at least one cam (180; 260) which acts on the at least one tongue (176) in a specific pivoting range of the retaining device (18; 206) and which, by means of a pivoting movement of the retaining device (18; 206), brings about a pivoting movement of the foot device (152).

18. A floor cleaning machine as claimed in claim 17, characterized in that at least one rib (178; 258) is arranged on the retaining device (18; 206) in a rotationally fixed manner, which rib is separate from the at least one cam (180; 260) and acts on the at least one cam (180; 260) in a specific pivoting range of the retaining device (18; 206) and causes a movement of the at least one cam (180; 260) for acting on the at least one tongue (176).

19. A floor cleaning machine as claimed in claim 18, characterized in that the at least one rib (178; 258) is arranged on a shaft (130; 214) which is connected in a rotationally fixed manner to the retaining device (18; 206).

20. A floor cleaning machine as claimed in claim 18 or 19, characterized in that the at least one cam (180) is arranged rotatably on the holding device (18; 206) and in particular on a shaft (130; 214) of the holding device.

21. A floor cleaning machine as claimed in claim 20, characterized in that the axis of rotation (184) of the at least one cam (180; 260) with respect to the holding device (18; 206) coincides with the pivot axis (22; 212) of the holding device (18; 206) with respect to the floor head (12; 204).

22. A floor cleaning machine according to any one of claims 18 to 21, characterized in that the at least one rib (178; 258) acts on the at least one cam (180; 260) only in one pivoting direction of the retaining device (18; 206).

23. A floor cleaning machine as claimed in any one of the preceding claims, characterized by spring means (194) whose spring force is directed in such a way as to bring the foot means (152) from the parking position (162) into the unsupported position.

24. A floor cleaning machine as claimed in claim 23, characterized in that the spring device (194) is configured as a tension spring device which strives to pull at least one foot (170a, 170b) upwards in the height direction (48; 246) of the floor head (12; 204).

25. A floor cleaning machine as claimed in any one of the preceding claims, characterized in that in the parking position (162) the holding device (18; 206) for the operator is in a fixed pivotal position relative to the floor head (12; 204).

26. A floor cleaning machine as claimed in claim 25, characterized in that in the fixed pivotal positioning the holding device (18; 206) is fixed with respect to the floor head (12; 204) in a force-locking and/or form-locking manner.

27. A floor cleaning machine according to claim 25 or 26, characterized by holding magnet means (140; 242) for fixing the pivoting position of the holding means (18; 206) on the floor head (12; 204).

28. A floor cleaning machine as claimed in claim 27, characterized by at least one of the following features:

-the holding magnet arrangement (140; 242) comprises at least one holding magnet (142; 238) and a mating element (144; 240) assigned to the at least one holding magnet (142; 238);

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

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

-at least one associated mating element (144; 240) of at least one holding magnet (142; 238) connected in a rotationally fixed manner to the holding device (18; 206) is arranged on the floor head (12; 204) in a rotationally fixed manner, or at least one associated holding magnet (142; 238) of at least one mating element (144; 240) of at least one holding magnet (142; 238) connected in a rotationally fixed manner to the holding device (18; 206) is arranged on the floor head (12; 204) in a rotationally fixed manner;

-at least one counter element (240) is designed as a stop (252) for the holding device (206) and in particular for the associated at least one holding magnet (238) when the counter element is mounted on the floor head (204) in a manner secured against relative movement, or as a stop for the holding device (206) and in particular for the associated at least one counter element (240) when the at least one holding magnet (238) is mounted on the floor head (204) in a manner secured against relative movement;

-at least one holding magnet (238) or at least one mating element (240) is arranged on a rocker (236) of the holding device (206), which rocker is pivotably arranged in a housing (228) of the floor head (204) by the holding device (206).

29. A floor cleaning machine as claimed in claim 28, characterized in that the at least one mating element (144; 240) is a metal plate which cooperates with an associated at least one holding magnet (142; 238).

30. A floor cleaning machine as claimed in any one of the preceding claims, characterized in that the foot arrangement (152) is brought automatically into the parking position (162) by pivoting the holding arrangement (18; 206) for the operator into a fixed pivot position relative to the floor head (12; 204), and in particular the at least one cleaning roller (14) is lifted from the standing surface (16) when the floor head (12; 204) rests on the standing surface (16).

31. A floor cleaning machine according to any one of the preceding claims, characterized in that the holding device (206) has a rotatability relative to the floor head (204), wherein the axis of rotation (218) is at least approximately parallel to the longitudinal axis (28) of the holding device (206).

32. A floor cleaning machine according to claim 31, characterized by a form-locking device which blocks the rotatability of the holding device (206) about the axis of rotation (218) in the parking position (222) of the floor cleaning machine.

33. A floor cleaning machine according to claim 32, characterized in that a hood (256) which is movable with the holding device (206) is arranged on the floor head (204), wherein a first form-locking element (268) is arranged on the holding device (206) and a second form-locking element (270) which cooperates with the first form-locking element (268) is arranged on the hood (256), and wherein in the parking position (222) the first form-locking element (268) and the second form-locking element (270) can be brought into form-locking engagement.

34. A floor cleaning machine according to claim 33, characterized by a spacer bracket (272) which, in the case of a non-parking position (222), positions the hood (256) relative to the holding device (206) such that the first form-locking element (268) and the second form-locking element (270) are not in form-locking engagement.

35. A floor cleaning machine according to claim 34, characterized in that the spacing bracket (272) is or comprises a spring-supported pin (274).

36. A floor cleaning machine as claimed in any one of claims 33 to 35, characterized in that a guide rail (264) is assigned to the hood (256), on which guide rail a curved partial region (266) of the hood (256) is guided.

37. A floor cleaning machine as claimed in claim 36, characterized in that the guide rail (264) serves as a spacer support for the hood (256) relative to the holding device (206) in the case of a non-parked position (222).

38. A floor cleaning machine according to claim 36 or 37, characterized in that the guide rail (264) is arranged on a movable cam (260).

39. A floor cleaning machine as claimed in any one of claims 33 to 38, characterized in that a stop (278) for the hood (256) is arranged on the floor head (204), which stop acts on the hood (256) and brings about a form-fitting connection with the retaining device (206) in the parking position (222).

40. A floor cleaning machine according to one of the preceding claims, characterized in that the tank arrangement (84) has a recess (92) into which at least a partial region of the drive (50) of the at least one cleaning roller (14) is sunk.

41. A floor cleaning machine as claimed in any one of the preceding claims, characterized in that the at least one cleaning roller (14) is constructed in two parts and is provided with a central drive.

42. A floor cleaning machine as claimed in any one of the preceding claims, characterized by a tank arrangement (34) for cleaning liquid which is arranged in the holding device (18; 206) or on the floor head (12; 204) and which has in particular a conveying device (40) for conveying cleaning liquid from the tank arrangement (34) for cleaning liquid to the at least one cleaning roller (14).

43. A floor cleaning machine according to any of the preceding claims, characterized by a scraping device (118) for scraping and coupling dirty fluid from the at least one cleaning roller (14) into the tank arrangement (84).

44. A floor cleaning machine according to one of the preceding claims, characterized in that the at least one cleaning roller (14) has a textile coating (116) and in particular a scraper (120) of a scraping device (118) dips into the textile coating (116).

45. A floor cleaning machine as claimed in the preamble of claim 1 or any one of the preceding claims, characterized in that a holding device (18; 206) for an operator is pivotably articulated on the floor head (12; 204), at least one rib (178; 258) being connected in a rotationally fixed manner to the holding device (18; 206), at least one cam (180; 260) being provided, which can be rotated relative to the holding device (18; 206) and which is separate from the at least one rib (178; 258), the at least one rib (178; 258) acting on the at least one cam (180; 260) and contributing to a rotational movement of the at least one cam (180; 260) in a specific pivoting positioning range of the holding device (18; 206) relative to the floor head (12; 204), and the at least one cam (180; 260) is coupled to the foot device (152) and, in a specific pivoting positioning range of the holding device (18; 206) relative to the floor head (12; 204), the movement of the foot device (152) can be actuated by means of the at least one cam (180; 260) and the foot device can be brought into the parking position (162).

46. A floor cleaning machine as claimed in one of the preceding claims, characterized in that the floor head (12; 204) has a first lateral side (74) and a second lateral side (76), wherein in particular the at least one cleaning roller (14) extends at least approximately as far as the first lateral side (74) and/or as far as the second lateral side (76), and at least one foot (172a, 172b) is moved back relative to the first lateral side (74) and the second lateral side (76).

47. A floor cleaning machine as claimed in any one of the preceding claims, characterized by being configured as a hand-guided floor cleaning machine with a holding device for an operator or as a self-propelled and self-steering floor cleaning machine.

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