RU2788973C1 - Cleaning machine with swivel device - Google Patents

Abstract

FIELD: mechanical engineering.

SUBSTANCE: invention relates to a cleaning machine containing cleaning head (52), handle-rod device (100), and swivel device (96), by means of which handle-rod device (100) is articulated with cleaning head (52) with the possibility of rotation relatively to it. On handle-rod device (100), connecting element (120) is located, having first part (126) and second part (128) spaced from first part (126) in transverse direction (129) oriented across the longitudinal axis of handle-rod device (100), wherein connecting element (120) is connected, with second part (128), to swivel (102) of swivel device (96), having axis (104) of rotation, in particular to first swivel (102) of swivel device (96), having first axis (104) of rotation, and, with first part (126), to handle-rod device (100).

EFFECT: simplification of a structure and operation of a cleaning machine due to that, when driving the machine by means of a handle-rod device, simplicity of controlled movement of a cleaning head along a cleaned surface is provided.

40 cl, 21 dwg

Description

SUBSTANCE: invention relates to a cleaning machine, comprising a cleaning head, a handle-rod device and a hinged device, by means of which the handle-rod device is articulated with the cleaning head with the possibility of rotation relative to it.

Such a harvester may include a first roller assembly, a second roller assembly, and a drive device for driving the first roller assembly and the second roller assembly.

GB Publication 146816 discloses a portable vacuum cleaner with a handle device.

US 2019/0099052 A1 discloses a rotary floor scrubber.

EP 0 950 370 A2 discloses a drive system for two counter-rotating cylindrical brushes.

DE 102013215198 A1 discloses a manually operated floor treatment device.

Publication DE 202013012345 U1 discloses a sweeper.

DE 10357637 A1 discloses a self-propelled or movable sweeper.

DE 2102325 A discloses an apparatus for preparing and applying cleaning foam.

Surface cleaning machines are known from WO 2016/058901 A1, WO 2016/058856 A1, WO 2017/063663 A1, WO 2016/058879 A1 and WO 2016/058956 A1. Also known from WO 2016/058907 A1 is a surface cleaning machine.

From the publication US 4875246 known portable floor cleaning device containing a roller driven by an electric motor.

From the publication DE 202009013434 U1, a device for wet cleaning of floors is known, containing a brush capable of rotating around an axis of rotation.

A cleaning machine is known from CN 201197698 Y.

From the publication US 6026529 known device for cleaning floors or other hard surfaces.

From the publication WO 2005/087075 A1, a floor harvester is known with a handle mounted on a base with the possibility of rotation.

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

From the publication US 3789449 known cleaning machine for cleaning hard floors.

CN 107007215 A discloses a floor cleaning robot.

DE 202018104772 U1 discloses a dirty water collection mechanism, a dirty water detection mechanism and a cleaning device.

The invention was based on the task of providing a harvesting machine of the type indicated above, in which, by means of an articulated device, it would be easy to control it.

This problem is solved in accordance with the invention in the aforementioned harvester due to the fact that on the handle-rod device there is a connecting element having a first part and a second part spaced from the first part, i.e. located at a distance from it, in the transverse direction, oriented across the longitudinal axis of the handle-rod device, wherein the second part of the connecting element is connected to the first hinge of the hinge device having the first axis of rotation, and the first part is connected to the handle-rod device, and the connecting element is made in the form of a corner element.

The articulation of the handle-rod device with the cleaning head through the connecting element provides ease of implementation of the cleaning machine, the cleaning head of which is driven along the surface to be cleaned, in particular, by applying control actions to the handle-rod device.

The use of the connecting element allows the cleaning head to be made with a low height measured between the bottom side and the top side. This achieves a good ability of the machine to go under furniture and other similar items.

The use of the connecting element makes it possible in a simple manner to realize a locking device for fixing the rod-handle device in a position with a certain orientation relative to the cleaning head, in particular in a standing position.

The use of a connecting element makes it possible to create a hinged device that can be implemented in a structurally simple and compact manner. In particular, this makes it possible to create a hinge device comprising (at least) a first hinge and a second hinge. As a result, the usability is optimized.

Due to the offset of the first part in the transverse direction relative to the second part, the handle-rod device can be tilted by means of a hinged device so that in such a tilted position ("second position" of the handle-rod device relative to the cleaning head), the height of the harvester is low. This result is achieved, in particular, without the need to make a recess in the cleaning head for the handle-rod device. This, in turn, makes it possible to optimize the design of the cleaning head for its intended use, i.e. cleaning.

As mentioned above, the connecting element is made in the form of a corner element, which makes it possible to easily achieve displacement of the first part fixed on the handle-rod device, i.e. its removal in the transverse direction, relative to the second part, fixed on the hinge. An alternative would be to make the connecting element in the form of an arcuate element.

In one embodiment of the invention, the second part is located at an angle, in particular an obtuse angle, to the first part. In this case, the specified angle is determined by the generatrix planes of the first part and the second part; these generating planes are located at the specified angle. For example, if the connecting element is made arcuate, such generating planes may be tangent planes to its first part and second part. The use of an obtuse angle gives a compact design. In addition, a transverse web may also be provided between the first part and the second part. With it, you can achieve an offset of the first part relative to the second part.

In particular, the first part of the connecting element is oriented coaxially with the longitudinal axis of the handle-rod device. This ensures the simplicity of the design of the harvester.

A variant is expedient, in which at least one cleaning tool is located on the cleaning head, and the cleaning machine has at least one of the following characteristics:

- the axis of rotation of the hinge is oriented at least approximately parallel to the flat surface on which the cleaning head rests with at least one cleaning tool when using the cleaning machine for its intended purpose;

- the axis of rotation is oriented, at least approximately, parallel to the generatrix of the plane of at least one cleaning tool, characterizing its contact with the surface to be cleaned;

- the axis of rotation is oriented at least approximately parallel to the axis of rotation of at least one cleaning tool;

- the axis of rotation is oriented at least approximately parallel to the width direction of the cleaning head between the first side and the second side;

- the axis of rotation is oriented transverse to the direction of movement of the cleaning head straight ahead when using the cleaning machine for its intended purpose, in particular perpendicular to this direction;

- the axis of rotation is located inside the cleaning head, in particular between the bottom side of the cleaning head and the top side of the cleaning head in the direction of height passing between the bottom side of the cleaning head and the top side of the cleaning head;

- the cleaning head has a front edge and a rear edge, and it extends in the longitudinal direction passing between the front edge and the rear edge, and the axis of rotation runs across the longitudinal direction of the cleaning head, in particular perpendicular to it;

- the hinge and/or the axis of rotation are located between the front edge and the rear edge of the cleaning head, and are located, in particular in the longitudinal direction of the cleaning head, in the middle between the front edge and the rear edge or closer to the middle than the front edge and than the rear edge ;

- the hinge and/or the axis of rotation is, in the longitudinal direction of the cleaning head, closer to the rear edge than to the front edge.

The axis of rotation is, for example, the first axis of rotation, by rotating the hand-crank device around which the operator standing on the surface to be cleaned can adapt the height of the machine to his height. The mobility around this axis makes it possible to drive the machine during the harvesting process with a corresponding possibility of adapting the height of the machine.

A variant is expedient, in which the connecting element has a solution facing the rear edge of the cleaning head. In particular, in the area of the solution, the connecting element is made concave along the mating curve.

Particularly expedient is a variant in which a depression is located or formed on the cleaning head, in which the hinge is located, the second part in particular being immersed in at least its separate section in the depression. This allows a kind of recessed hinge to be realized. This ensures a low cleaning head height. Optimization of the use of constructive space is achieved.

A variant in which the axis of rotation is located in or below the depression is expedient. This ensures the compact design of the cleaning head. Wherein, positioning the axis of rotation under the pit means that it is located under the pit, looking in the direction of height passing between the bottom side and the top side of the cleaning head.

Particularly expedient is the variant in which the handle-rod device has a (extreme) first position relative to the axis of rotation, and the harvester has at least one of the following characteristics:

- the handle-rod device is located across the cleaning head in the longitudinal direction of the handle-rod device, and the angle between the longitudinal direction of the handle-rod device and the cleaning head is, in particular, from 75° to 105°, for example, is at least approximately 90 °;

- the first part of the connecting element is located across the cleaning head, and the angle between the first part of the connecting element and the cleaning head is, in particular, from 75° to 105°, for example is at least approximately 90°;

- the cleaning machine has its maximum height in the direction of height passing between the underside of the cleaning head and the top side of the cleaning head;

- the second part of the connecting element is located across the cleaning head;

- the second part of the connecting element is oriented at an obtuse angle to the cleaning head in relation to the solution of the connecting element between the first part and the second part;

the obtuse angle defining the orientation of the second part with respect to the cleaning head corresponds to the difference of 270° and the obtuse angle between the first part and the second part of the connecting element.

The first position is a kind of parking position of the handle-bar device relative to the cleaning head. The cleaning machine then has, in the height direction (passing between the bottom side of the cleaning head and the top side of the cleaning head), in particular, its largest dimensions.

A variant is expedient, in which a locking device is provided for fixing the first position due to force closure. This makes it possible to realize a parking position in which the handlebar device is held in the first position. Due to the use of force locking, the locking device has a simple design and is easy to operate for the operator.

In particular, the locking device is designed so that when the cleaning head is placed on the base with a slope of 10° relative to the horizontal in the direction of gravity, the handle-rod device remains in the first position. In principle, with such a setting of the cleaning head on an inclined base, the handle-rod device, under the influence of its own weight, can leave the first position and fall. The locking device is made accordingly so that at a slope of 10° (or a greater angle) the handle-rod device does not spontaneously leave the first position. It was found that in this case, the operator can easily apply the appropriate force necessary to remove the handle-bar device from the first position, also if the cleaning head is on a flat (not sloping) base, and on the other hand, sufficient fixation of the first position is ensured, i.e. .e. fixing the handle-rod device in this first position.

In one embodiment of the invention, the locking device includes a first element located or formed in the cleaning head, and a second element located or formed on the connecting element, the first element and the second element cooperating to fix the first position due to force closure. This allows the locking device to be realized in a structurally simple and compact manner.

In one embodiment of the invention, the second element is located or formed on the second part of the connecting element. This ensures the compact design of the machine for cleaning surfaces.

For example, the locking device comprises a magnetic device. This makes it possible to fix the handle-rod device in a simple manner due to the forceful lock provided by the magnetic holding forces.

Preferably, the first element is or comprises a magnet located on the cleaning head, and the second element is a latch for cooperating with the magnet, the latch being in particular formed by the connecting element. In this way, the locking device can be realized in a structurally simple manner. It is not required to provide positive locking means or other similar connecting means. The locking device is easy for the operator to operate.

A variant in which the magnet is part of a magnetic system with a sandwich structure has proven to be effective. For example, the magnet can be made in the form of a magnetic plate located between two sheet iron poles. The latter can absorb the magnetic flux of the magnet and high adhesive forces are achieved.

It is expedient to have at least one cleaning tool on the cleaning head, and the handle-rod device has a second position relative to the axis of rotation, and the cleaning machine has at least one of the following characteristics:

- the handle-rod device and/or the first part of the connecting element is oriented along the longitudinal axis of the handle-rod device, at least approximately, parallel to the generatrix of the plane of at least one cleaning tool;

- the cleaning machine has its minimum height H in the height direction passing between the bottom side of the cleaning head and the top side of the cleaning head;

- a section of the handle-rod device faces at least one cleaning head and is located, in particular, below the upper side of the cleaning head;

- the second part of the connecting element is oriented, according to the solution of the connecting element between its first part and the second part, at a zero angle or at an acute angle to the cleaning head;

- the acute angle defining the orientation of the second part relative to the cleaning head corresponds to the difference of 180° and the obtuse angle between the first part and the second part of the connecting element;

- the handle-bar device does not protrude or protrudes no more than 5 cm beyond the upper side of the cleaning head.

In the second position of the handlebar device relative to the cleaning head, the cleaning machine has in particular a minimum height measured in the respective height direction. This ensures a good ability of the machine to go under furniture and other similar objects.

It is expedient that the handle-rod device is installed with the possibility of rotation around the axis of rotation between the first position and the second position, and the angular distance between the first position and the second position is, in particular, from 80° to 100°, for example, is at least approximately 90°. As a result, controllability is optimized. On the one hand, it ensures, for example, the adaptability of the machine to the height of the operator. On the one hand, an optimized ability of the machine to go under furniture and other similar objects is ensured.

Particularly expedient is the variant in which the swivel device is located and designed so that the movement of the cleaning head on the surface to be cleaned is directed by means of control actions generated on the handle-rod device. In particular, the cleaning head rests on the surface to be cleaned by at least two cleaning roller assemblies. This achieves ease of operation. For example, the cleaning head can move on the surface to be cleaned, driven by a motor.

In particular, the hinge device comprises, as the aforementioned hinge, a first hinge with a first axis of rotation, and also comprises a second hinge with a second axis of rotation, the second axis of rotation being oriented transversely to the first axis of rotation. If, for example, the first axis of rotation is oriented parallel to the generatrix of the at least one cleaning tool, the presence of this axis of rotation allows the operator, among other things, to adjust the height of the machine. The presence of the second axis of rotation ensures the simplicity of the direction of movement of the machine, i.e. "ruling" it.

Especially expedient is the option in which the second axis of rotation intersects the first axis of rotation or crosses with it at a distance of not more than 2 cm from it, in particular, not more than 1 cm. This allows, acting on the handle-rod device, to direct the movement of the cleaning head along the surface to be cleaned .

For the same reason, a variant is expedient in which the second axis of rotation passes through the second part of the connecting element. As a result, the hinge device can be realized in a structurally simple and compact manner.

It is envisaged, for example, that on the second part of the connecting element there is a second hinge element, which allows rotation around the second axis of rotation, and, in particular, on the second part of the connecting element, there is a part of the first hinge, which provides the possibility of rotation around the first axis of rotation, and, in particular, , parts of the first hinge and the second hinge are implemented in one part or located at a distance of not more than 5 cm from each other. In this way, the intersection of the first axis of rotation and the second axis of rotation can be achieved, or their crossing with a small distance between them, which is not more than 2 cm.

The above problem is also solved in a cleaning machine, containing a cleaning head, a handle-rod device and a hinged device, by means of which the handle-rod device is articulated with the cleaning head with the possibility of rotation relative to it, due to the fact that the cleaning machine has at least one of the following characteristics:

- the hinge device is located, along the longitudinal axis of the cleaning head, between the first cleaning tool and the second cleaning tool, and the cleaning tools are made, in particular, in the form of cleaning rollers;

- the hinge device is located, in the direction of the height of the cleaning head, passing between the bottom side of the cleaning head and the upper side of the cleaning head, above the dirty liquid storage device;

- the hinge device is located, in the direction of the height of the cleaning head, passing between the bottom side of the cleaning head and the upper side of the cleaning head, above the drive device;

adjoining the drive device is a free space in which the hinge device is located at least partially.

This allows the hinge device to be constructed in a simple and compact manner. The swivel device can be placed compactly on the cleaning head. The cleaning head, in turn, can therefore be designed with a low height. This provides the operator with ease of control.

In one embodiment of the invention, the swivel device is provided with a cover located, in particular, on the cleaning head and the handle-rod device. This allows the hinge device to be hermetically sealed.

The invention is also based on the object of providing a cleaning machine of the type mentioned above, in which the cleaning head can be made with a minimized height.

This problem is solved in the aforementioned cleaning machine or additionally due to the fact that the drive device includes a drive motor located, in the longitudinal direction of the cleaning head, between the first roller assembly and the second roller assembly, and a transmission mechanism that ensures the transmission of torque from the drive motor to the first roller assembly and to the second roller assembly, wherein the transmission mechanism comprises a gearbox, and the rotational speed of the first roller assembly and the rotational speed of the second roller assembly are less than the rotational speed of the drive motor.

The use of a drive motor with a relatively high rotational speed, which can typically be around 6400 rpm, allows this drive motor to be of small geometrical dimensions. By means of a geared transmission mechanism, it is possible to transmit torque to the roller assemblies, and in this case, rotation of the roller assemblies can be realized at a reduced speed, typically eg 500 revolutions per minute.

As a result, the cleaning head can be implemented with a small footprint and construction volume. In particular, it can be implemented with a lower height measured between the bottom side and the top side. This provides a good ability for the machine to go under furniture.

Further, the drive device makes it possible to make the roller units so that they can clean the edge (for example, close to the baseboards) areas of the surface to be cleaned, capturing these areas with the side edges of the cleaning head. In addition, such edge portions of the surface to be cleaned can be cleaned in a simple manner by gripping them with the leading edge and the rear edge of the cleaning head. The transmission mechanism makes it possible, in particular, to realize in a simple way the central drive of the spaced roller units from the drive motor located between them.

It is expedient that the reduction ratio of the gearbox, which reduces the speed of the drive motor to the speed of the rollers, is from 1:10 to 1:15, in particular, is at least approximately 1:12.5, and the speed of the rollers is in particular from 400 to 600 rpm. This allows the use of a drive motor with a relatively high rotational speed and small geometric dimensions.

In one embodiment of the invention, the transmission mechanism is configured such that the first roller assembly and the second roller assembly rotate in opposite directions. This allows you to optimize the cleaning result. For example, the surface area over which the first roller assembly and the second roller assembly pass in succession is subjected to "double" cleaning.

It is expedient to use a variant in which the gearbox is made multi-stage, in particular three-stage. This ensures a compact design.

In one embodiment of the invention, the transmission mechanism comprises a gear mechanism acting as a two-stage gearbox and a belt transmission device acting as a single-stage reduction gear, and the belt transmission device is associated with the gear mechanism to receive torque from it. This achieves a compact design of the transmission mechanism. The use of a belt transmission device makes it possible to transmit torque in a simple manner over a length section. In this way, the transmission mechanism can be placed compactly in the cleaning head.

In particular, the belt transmission device (as if it has a first part and a second part) is connected to the corresponding shaft of the corresponding roller assembly to transmit torque to it. This allows the torque to be transmitted to the roller units remote from the drive motor. This makes it possible, for example, to clean the edge portions of the surface to be cleaned with the roller units, capturing them with the front edge and the rear edge of the cleaning head. In addition, the use of a belt transmission device makes it possible to realize in a simple way a central drive of the roller units for transmitting torque to them from a drive motor located between them. By means of one drive motor, it is possible to impart rotational motion to both the first roller assembly and the second roller assembly.

In one embodiment of the invention, the gear mechanism comprises a first gear assembly associated with a drive motor and a second gear assembly associated with the first gear assembly and a belt drive. This makes it possible to implement a two-stage gearbox in a simple manner. In addition, this allows the first roller assembly and the second roller assembly to be driven in a simple manner.

In particular, for driving the first roller assembly and the second roller assembly, a third gear unit is also provided, which is connected to the second gear unit and to the belt transmission device. This allows a counter-rotation of the roller units to be realized in a simple manner.

In one embodiment of the invention, the second set of gears is associated with the first part of the belt transmission device, which is associated with the first roller assembly, and the third set of gears is associated with the second part of the belt transmission device, which is associated with the second roller assembly. This allows torque to be transmitted from the drive motor to both the first roller assembly and the second roller assembly. In this case, the roller units can be located at a distance from each other. In particular, due to this, the cleaning head can only rest on the surface to be cleaned by the first roller assembly and the second roller assembly. You can do without support rollers or other similar elements that can leave marks on the surface being cleaned. In addition, it is possible to clean the edge portions of the surface to be cleaned in a simple manner by grasping them both with the front edge and the rear edge of the cleaning head and with the side edges of the cleaning head.

It is advisable to provide at least one of the following:

- the drive axis of the drive motor is oriented parallel to at least one axis of rotation of the roller units;

- the axis of the drive motor drive is oriented parallel to the axis of rotation (the first axis of rotation) of the articulated device;

- the axis of the drive motor drive and the axis of rotation (the first axis of rotation) are located at a distance of no more than 5 cm from each other.

This ensures a compact design of the cleaning head with a relatively low height, and hence a good ability of the machine to go under furniture.

In one embodiment of the invention, a first roller assembly and a second roller assembly are located on the cleaning head, each of which is made up of two parts, and the drive device is located in the middle and is connected with the respective roller assemblies to transmit rotation to them. This achieves the central drive of the roller units. This eliminates the need for suspension, drive or support of the roller units at the edges of the cleaning head. The roller assemblies may extend to the sides of the cleaning head. This allows you to clean the edge areas of the surface, grabbing them with the side edges of the cleaning head.

In this case, it is expedient that the roller units reach the side edge of the cleaning head. This allows you to clean the edge areas of the surface, grabbing them with the side edges of the cleaning head.

In one embodiment of the invention, a first roll assembly and a second roll assembly are provided, the first roll assembly and/or the second roll assembly being in the form of cleaning rolls and having, in particular, a textile soft lining (also referred to as a cap or "coat"). In principle, it is also possible that the first roller assembly and the second roller assembly are designed as sweeper rollers and are provided, for example, with brushes. For example, a variant is also possible in which one roller unit is provided with a textile soft lining and is made in the form of a washing roller, and the second roller unit is made in the form of a sweeper roller.

A variant is expedient, in which the cleaning head has a height, measured in the height direction passing between the bottom side of the cleaning head and the top side of the cleaning head, and is not more than 20 cm, in particular not more than 15 cm, in particular not more than 14 cm, in particular not more than 13 cm, in particular not more than 12 cm, in particular not more than 11 cm. This ensures a small height dimension of the cleaning head and its good ability to go under furniture and other similar objects.

In principle, the harvesting machine can be made with a drive device (without a handle-rod device) in the form of a self-propelled and self-guided device. Such a device has a small overall height, allowing it to drive under furniture and other similar items.

Alternatively, the cleaning machine may be in the form of a manually operated machine for cleaning surfaces, in particular floors and hard floors.

The implementation of the invention is discussed in more detail below on the example of its preferred options, illustrated by the drawings, which show:

in fig. 1 is a schematic representation of one exemplary embodiment of a harvesting machine with a swivel device, wherein the drawing illustrates the possibility of rotation of the handle-bar device around the first axis of rotation (running perpendicular to the plane of the drawing);

in fig. 2 - shown in FIG. 1 harvester with an illustration of the possibility of rotation of the handle-rod device around the second axis of rotation;

in fig. 3 is a partial view of one exemplary embodiment of a cleaning machine according to the invention with a cleaning head;

in fig. 4 is a partial perspective view of the system shown in FIG. 3 harvesters with a handle-rod device in the first position with the cover removed;

in fig. 5 is a sectional view of the system shown in FIG. 3 harvesters;

in fig. 6 is a partial view of the region A indicated in FIG. five;

in fig. 7 - shown in FIG. 3 harvester in the corresponding FIG. 4 perspective, and the handle-rod device is in the second position relative to the cleaning head;

in fig. 8 is a sectional view of the one shown in FIG. 3 cleaning machine, and the handle-rod device is in the second position relative to the cleaning head;

in fig. 9 is an enlarged view of the area B indicated in FIG. 8,

in fig. 10 shows an exemplary embodiment of the hinged device for the assembly shown in FIG. 3 harvesters;

in fig. 11 is a sectional view along the line 11-11 indicated in FIG. 10;

in fig. 12 is a view of the hinge device in the direction C indicated in FIG. eleven;

in fig. 13 is a partial view of a variation of an exemplary embodiment of a harvester;

in fig. 14 shows an exemplary embodiment of a combination of a drive device and a roller assembly for the one shown in FIG. 3 harvesters;

in fig. 15 is a view of the one shown in FIG. 14 drive device;

in fig. 16 is a perspective view similar to FIG. 15;

in fig. 17 is a section in the plane 17-17 indicated in FIG. sixteen;

in fig. 18 is a section in the plane 18-18 indicated in FIG. sixteen;

in fig. 19(a), 19(b) is a side view of one exemplary execution of the connecting element located between the handle-rod device and the cleaning head and located in various angular positions;

in fig. 20(a), 20(b) - another example of the execution of the connecting element in various angular positions; and

in fig. 21(a), 21(b) - another example of the implementation of the connecting element in various angular positions.

An example of a harvester, shown schematically in FIG. 1 and 2, where it is denoted by the number 10, is a surface cleaning machine used for cleaning surfaces, in particular floors, especially hard floors.

The harvester 10 includes a cleaning head 12. (At least one) cleaning tool 14 is mounted on the cleaning head 12.

In this exemplary embodiment of the invention, the first cleaning roller assembly 16a and the second cleaning roller assembly 16b are used as cleaning tools. The first cleaning roller assembly 16a and the second cleaning roller assembly 16b are located at a distance from each other. During the operation of the cleaning machine 10, the cleaning head 12, and accordingly the cleaning machine 10 as a whole, rests on the surface 18 to be cleaned by cleaning roller assemblies 16a, 16b.

The harvester 10 is manually operated. A handle-rod device 20 is installed on the cleaning head 12. The operator 21 can hold the harvester 10 by the handle 22 located on the handle-rod device 20.

The cleaning machine 10 is sized so that, with the cleaning roller units 16a, 16b resting on the surface 18 to be cleaned, the operator 21 can perform cleaning by conveniently guiding the cleaning head along the surface 18 to be cleaned by means of an angled rod. In particular, the length of the cleaning machine 10 along the longitudinal axis between the cleaning roller units 16a, 16b and the handle 22 is between 60 and 130 cm.

The handle-rod device 20 is articulated with the cleaning head 12 by means of a hinge device 24. The hinge device 24 allows the handle-rod device 20 to be rotated relative to the cleaning head 12.

In one embodiment of the invention, the hinge device 24 includes a first hinge 26 with a first axis 28 of rotation. In FIG. 1 illustrates the possibility of rotation about the first axis 28 of rotation. In FIG. 1 in the schematic representation, the first axis of rotation 28 extends perpendicular to the plane of the drawing.

By turning the handle-rod device around the first axis 28 of rotation, it is possible to adjust the position of the handle 22 in height relative to the surface to be cleaned 18, on which the cleaning head 12 rests with the cleaning roller assemblies 16a, 16b. This allows, among other things, to adjust the size of the machine according to the height of the operator 21 and to "level" the movements of the operator during harvesting.

The harvester 10 has a "straight ahead" direction 30 of travel.

In particular, the cleaning roller units 16a, 16b are rotated. The "straight ahead" direction 30 is determined in particular by the direction of rotation of the cleaning roller units 16a, 16b.

In addition, the harvester 10 has a "straight back" direction 32 opposite to the "straight forward" direction 30.

The directions 30 and/or 32 may represent the directions in which the harvester 10 is automatically moving, or they may correspond to the directions of feed movements to be initiated by the operator.

In this case, the hinge device 24 is made with a first hinge 26, providing, in particular, the possibility of rotation around the first axis 28 of rotation so that the handle-rod device 20 can rotate between the first position 34 and the second position, which is indicated by the number 36 in the drawings. between the first position 34 and the second position 36 is in particular between 75° and 105°. In the exemplary embodiment of the invention (see Fig. 1) the angular distance between the first position 34 and the second position 36 is about 90°.

In the second position 36, in particular, the handle bar device 20 points with the handle 22 in the direction of the direction of travel 32 "straight back".

In the first position 34, the rod-handle device 20 is particularly oriented at least approximately perpendicular to the cleaning head 21.

The hinge device 24 also includes a second hinge 38 (FIG. 2) with a second axis 40 of rotation. By means of the second hinge 38, the handle-rod device 20 can be rotated around the second axis 40 of rotation. The second axis 40 of rotation is oriented across the first axis 28 of rotation.

In one embodiment of the invention, the second hinge 38 is pivoted by the first hinge 26 so that the second axis of rotation 40 is not a spatially fixed axis.

Through the second hinge 38, which allows rotation around the second axis 40 of rotation, the handle-rod device can tilt to the side relative to the operator standing on the surface to be cleaned 18 behind the cleaning head 12 (see Fig. 2).

The range of angles of such an inclination is, for example, ±45° relative to the neutral position of the handle-rod device.

The hinged device 24 is made, in particular, so that the operator 21 can control the movement of the cleaning head 12 along the surface 18 being cleaned, creating control actions through the handle-rod device 20. The cleaning head 12 follows the movement of the handle-rod device 20 initiated by the operator 21.

In one embodiment of the invention, a dampening device 42 is provided, by means of which a cleaning liquid (which may be fresh water or a mixture of fresh water and detergent) is supplied to the cleaning roller units 16a, 16b. Humidifier device 42 includes a reservoir device 44 for cleaning liquid. The reservoir device 44 for the cleaning liquid is located, in particular, on the handle-rod device 20. A supply device is provided to ensure the supply of the cleaning liquid to the cleaning head 12.

A dirty liquid storage device 46 is also provided to accommodate the dirty (waste) liquid. In this case, such a storage device 46 for dirty liquid can be located on the handle-bar device 20. In the shown in FIG. 1 and 2 of the exemplary embodiment, the dirty liquid storage device 46 is located on the cleaning head 12 between the first cleaning roller assembly 16a and the second cleaning roller assembly 16b.

In one exemplary embodiment of the invention, the suction of dirty liquid is provided, wherein by suction the dirty liquid is in particular separated from the cleaning roller units 16a, 16b and transferred to the dirty liquid storage device 46 .

It is also possible, for example, that the dirty liquid is simply removed from the cleaning roller assemblies 16a, 16b and to a certain extent discarded into the dirty liquid storage device 46 without the need for suction flow to be exposed to the cleaning roller assemblies 16a, 16b.

In one example of its implementation proposed in the invention, the cleaning machine is a machine 50 for cleaning surfaces (Fig. 3-10). The surface cleaning machine 10 is used in particular for cleaning hard floor coverings.

The general layout of the machine with a handle-rod device and a cleaning head is described above, in particular, using the example of a harvester 10.

The sweeper 50 includes a cleaning head 52. This is shown in the partial view shown in FIG. 3.

The cleaning head 52 has a body 54. On the body 54 of the head is the first shaft 56. The first shaft 56 is mounted for rotation about the first axis 58 of rotation. The first cleaning roller assembly 60 is seated on the first shaft 56 as the first cleaning tool.

At a distance from the first shaft 56 on the body 54 of the head is a second shaft 62 mounted for rotation about the second axis 64 of rotation. On the second shaft 62, the second cleaning roller assembly 66 is seated as the second cleaning tool. The first cleaning roller assembly 60 and the second cleaning roller assembly 66 have a cylindrical sleeve 68, on which the cleaning medium 70 is located.

In one embodiment of the invention, the cleaning medium 70 is a textile material, such as a microfiber material.

In principle, it is also possible that the first cleaning roller assembly 60 and/or the second cleaning roller assembly 66 are in the form of brush or sweeper rollers.

The first axis of rotation 58 and the second axis of rotation 64 are spaced from each other, i. e. located at a distance from each other, in the longitudinal direction 72 (see Fig. 4). The longitudinal direction 72 is the longitudinal direction of the cleaning head 52, passing between its front edge 74 and the rear edge 76.

In particular, the "straight ahead" direction 30 is parallel to the longitudinal direction 72. Accordingly, the "straight back" direction 32 is parallel to the longitudinal direction 72.

The cleaning head 52 also has a width direction 78 . This width direction 78 extends perpendicular to the longitudinal direction 72 and in this case parallel to the first axis of rotation 58 and the second axis 64 of rotation. The cleaning head 52 extends in the width direction 78 between the first side 80 and the opposite second side 82.

In one embodiment of the invention, the cleaning head 52 and cleaning roller assemblies 60, 66 are designed such that the latter extend to their respective sides 80, 82 and in particular terminate at least approximately flush with the first side 80 and the second side. 82. This allows you to clean the edge areas of the surface.

The head housing 54 has an overlapping element 84. The overlapping element 84 at least partially overlaps the top of the first cleaning roller assembly 60 and the second cleaning roller assembly 66.

Between the overlapping member 84, the first cleaning roller assembly 60 and the second cleaning roller assembly 66, a free space 86 is formed. In this free space, a dirty liquid storage device 86 corresponding to the dirty liquid storage device 46 used in the cleaning machine 10 is disposed. 86 for a dirty liquid is schematically shown in FIG. 7. In FIG. 3-5, as well as in Fig. 8 this storage device 86 is not shown.

The dirty liquid storage device 86 is removable from the cleaning head 52 to empty it and, if necessary, to clean it. It can be removed from the head body 54 downwards, for example, or it can be removed to the side.

In principle, a variant is possible in which the dirty liquid is separated from the cleaning roller units 60, 66, in particular by suction. A suitable suction unit is provided for this.

In one embodiment, the invention provides for the removal of dirty liquid from the cleaning roller assemblies 60, 66 by means of scraper bars cooperating with the respective cleaning roller assemblies 60, 66 and, for example, protruding into the textile upholstery (and cleaning medium 70). The dirty liquid thus separated can then be sucked up and transferred to the dirty liquid storage device 86 .

In an alternative embodiment of the invention, the separation of the dirty liquid is carried out on respective scraper bars and the dirty liquid storage device 86 is positioned so that the separated dirty liquid can to a certain extent be "dumped" directly into the dirty liquid storage device 86 without the need to affect the cleaning roll assemblies. suction flow generated by the suction unit.

The cleaning head 52 has a bottom side 88 and an upper side 90 (see, for example, FIG. 5). The underside 88 is defined as forming a plane 92 (see FIG. 5) of the cleaning roll assemblies 60, 66.

When the cleaning head 52 is properly placed by the cleaning roller assemblies 60, 66 on the surface to be cleaned 18, the aforementioned generatrix 92 faces this surface to be cleaned 18. If the surface to be cleaned 18 is flat, then the generatrix 92 coincides with this flat surface.

The top side 90 is located at a distance from this bottom side 88, measured in the height direction 94 . The height direction 94 extends perpendicular to the longitudinal direction 72 and perpendicular to the width direction.

The height of the cleaning head, and hence its overall height H, which determines the possibility of the cleaning head entering under the furniture and measured in the height direction 94 (Fig. 8), is defined as the distance between the lower side 88 and the upper side 90.

In one embodiment of the invention, this distance H is defined by the hinge device 96, which is located on the top side or in the region of the top side 90 and may have parts protruding beyond the surface of the head housing 54.

In this case, the height H of the cleaning head 52 and the height direction 94 can be considered, in particular, as the height between the generatrix plane 92 and the generatrix plane 110 at the highest point of the cleaning head 52 from its upper side 90 (see Fig. 5 and 8).

The height H is in particular not more than 20 cm, preferably not more than 15 cm, not more than 14 cm, not more than 13 cm, not more than 12 cm, in particular not more than 11 cm or not more than 10 cm. under furniture or other similar interior items standing on legs.

It is also possible that one or more scoop elements are located on the cleaning head 52, which ensure the supply of coarse debris to the corresponding cleaning roller assemblies 60, 66.

In this regard, reference may be made to WO 2019/048496 A1, the contents of which are hereby incorporated by reference in their entirety.

By means of a hinged device 96, the rod-handle device 100 is articulated with the cleaning head 52 for rotation relative to it.

The handle-rod device 100 is made in basically the same way as the handle-rod device 20, and serves to enable the operator, while standing on the surface to be cleaned 18, to drive the surface cleaning machine 50 along the surface to be cleaned 18; the surface cleaning machine 50 is manually operated.

The hinge device 96 includes a first hinge 102 with a first axis 104 of rotation. It also contains a second hinge 106 with a second axis 108 of rotation.

The first pivot axis 104 corresponds to the first pivot axis 28 in the harvester 10. The second pivot axis 108 corresponds to the second pivot axis 40 in the harvester 10.

A recess 112 is formed on the cleaning head 52 on the upper side 90. The recess 112 is a recess in the surface 98 of the cleaning head 52. The first hinge 102 is located in the recess 112 and is thus recessed into the surface 98.

The cavity 112 has an opening 114 on the surface 98.

The first hinge 102 in one embodiment of the invention includes a pin 116 oriented parallel to the first axis of rotation 104 and located in the cavity 112 with a recess relative to the surface 98 and also relative to the opening 114. The pin 116 is fixed from rotation relative to the cleaning head 52.

On the finger 116 is the shaft 118, mounted for rotation around the first axis 104 of rotation. Shaft 118 surrounds and houses pin 116. Shaft 118 is also located in cavity 112.

The shaft 118 is made, in particular, in the form of an external shaft or an external capsule for the pin 116.

The first pivot 102 (first pivot bearing) with pin 116 and shaft 118 is positioned such that the first pivot axis 104 is in the cleaning head 52. The first pivot axis 104 is oriented parallel to the first pivot axis 58 and the second pivot axis 64. It is oriented parallel to the generatrix of the plane 92. It is oriented perpendicular to the longitudinal direction 72. It is oriented parallel to the width direction 78. It is oriented parallel to the generating plane 110.

It extends inside the cavity 112 and in this case, in particular, with a recess in relation to the upper side 90 and in this case the generatrix of the plane 110. It passes, in particular, through the body 54 of the head.

The shaft 118 is connected to the connecting element 120 (see also Fig. 19(a), 19(b)). This connector 120 is in turn connected to the handlebar 100 on the underside 122 of the handlebar 100.

The connecting element 120 is made in the form of a corner element 124.

The connecting element 120 (see, for example, Fig. 6) has a first part 126 and a second part 128. The first part 126 and the second part 128, in particular, are connected to each other in a single unit. The first part 126 and the second part 128 are preferably made in the form of one piece of strip.

The first part 126 and the second part 128 are offset from each other in the transverse direction 129 (see Fig. 19(a)), i.e. spaced apart in this transverse direction 129. The transverse direction 129 extends across the longitudinal axis 146 of the handle-rod device 100, for example perpendicular to it.

The first part 126 and the second part 128 are oriented at an obtuse angle 130 to each other to provide lateral displacement (lateral displacement 129). This obtuse angle 130 (see FIG. 6) is in particular between 120° and 150°. In a particular embodiment of the invention, this obtuse angle 130 is approximately 135°.

The corner element 124 defines the opening 132 from the side of the obtuse angle 130. The opening 132 can be considered as the inner side of the wedge or boom. The mating curve 131 of the corner element 124 in the region of the obtuse angle 130, i. e. solution 132 is concave.

The connecting element 120 with its second part 128 is connected to the first hinge 102 and is connected to the shaft 118. With its first part 126 it is connected to the lower side 122 of the handle-rod device 100.

In one embodiment of the invention, the second hinge 106 is configured so that the second part 128 of the connecting element 120 can be rotated relative to the shaft 118 about the second axis 108 of rotation. The second hinge 106 is located on the shaft 118.

In one embodiment of the invention on the shaft 118 is a pin 134, oriented parallel to the second axis 108 of rotation.

The second part 128 of the connecting element 120 has a hole 136 into which the pin 134 is inserted. The pin 134 is locked from falling out by means of a locking element 138 mounted on the pin 134. The locking element 138 secures the pin from axial movement along the second axis 108 of rotation.

The second part 128 with the hole 136 made in it forms for the locking element 138 located on the outside of the shaft, which is rotatable about the second axis 108 of rotation.

The second hinge 106, with the pin 134 and the second part 128 at the opening 136, is located at least partially recessed into the cavity 112.

The second axis 108 of rotation is oriented perpendicular to the first axis 104 of rotation.

It is envisaged that the first axis of rotation 104 and the second axis of rotation 108 intersect, or at least cross at a small distance from each other. In particular, this distance is approximately at most 2 cm, and preferably at most 1 cm.

This allows the operator, as described above with the example of the harvester 10, using the handle-rod device 100 to direct the movement of the cleaning head 52 along the surface 18 to be cleaned.

The first axis of rotation 104 is fixed relative to the cleaning head 52.

The position in space of the second axis 108 of rotation relative to the cleaning head 52 is variable: its position in space depends on the angular position in the first hinge 102 around the first axis 104 of rotation.

In the exemplary embodiment of the invention, the shaft 118 is a common structural element of the first hinge 102 and the second hinge 106. It forms the rotary part of the first hinge 102 and a part fixed relative to the second hinge 106, around which the second part 128 of the connecting element can rotate. Pin 134 is fixedly connected to shaft 118.

In principle, a variant without such a common element of the hinge design is also possible. In this case, the corresponding connecting parts, if they are not implemented in a certain common part of the structure, are preferably located at a distance of not more than 5 cm from each other.

In principle, it is also possible that the second hinge 106, for example, is located on the first part 126 of the connecting element 120, or is located on the rod-handle device 100.

The location of the second hinge 106 at the first hinge 102 makes it easy to realize the intersection of the first axis 104 of rotation and the second axis 108 of rotation or their crossing at a small (no more than 2 cm) distance from each other.

The handle-rod device 100 has, relative to the cleaning head 52, an extreme first position 140 (Fig. 3-6, Fig. 19(a)) and an extreme second position 142 (Fig. 10-12, Fig. 19(b)).

The first position 140 and the second position 142 are the extreme positions in terms of the angle of rotation around the first axis 104 of rotation. The first position 140 corresponds to the first position 34 in the case of the harvester 10. The second position 142 corresponds to the second position 36 in that harvester.

The handlebar device 100 can also be tilted, for example about the second axis of rotation 108, by an angle of ±x° relative to its neutral position 144 (see FIG. 2). The neutral position 144 (FIG. 2) is defined as the zero tilt angle position. The limiting inclination angle x is, for example, 45° or 60°.

The first position 140 and the second position 142 of the hand-grip device relate, in particular, to its neutral position 144. The angular distance between the first position 140 and the second position 142, which determines the range of rotation angles of the hand-grip device 100 around the first axis 104 of rotation, is, for example, from 75° to 105°. In one embodiment of the invention, this angular distance is at least approximately 90° (see Fig. 1).

In the first position 140, the rod-handle device 100 is oriented across the cleaning head 52; The handle-rod device 100 has a longitudinal axis 146 along which the handle-rod device 100 extends.

The first part 126 of the connecting element, in particular, is oriented at least approximately parallel to the longitudinal axis 146.

In the first position 140, the longitudinal axis 146 is oriented, in particular, perpendicular to the cleaning head 52. In particular, the rod-handle device 100 is oriented with its longitudinal axis 146 perpendicular to the longitudinal direction 72 and perpendicular to the width direction 78.

In addition, in the first position 140, the handle-rod device 100 is oriented with its longitudinal axis 146 across the generatrix plane 92, in particular perpendicular to it, and also across the generatrix plane 110, in particular perpendicular to it.

In the first position 140, the first part 126 of the connecting element 120 is oriented across the cleaning head 52 (ie, across the generatrix plane 92, or across the generatrix plane 110, or across the longitudinal direction 72 and the width direction 78). In particular, in this orientation, the first part of the connecting element is perpendicular to the cleaning head 52 (in this regard, see, for example, Fig. 6). The corresponding right angle is numbered 148.

In the first position 140, the second part 128 of the connecting element 120 is oriented towards the cleaning head 52 (for example, to the generatrix 92) at an obtuse angle 150. In this case, an obtuse angle 150 is the difference between 270° and an obtuse angle 130. If we designate an obtuse angle 150 with the symbol α, and obtuse angle 130 - symbol β, then their ratio can be expressed as: α=270°-β.

In the first position 140, the opening 132 of the corner piece 124 faces the trailing edge 76 of the cleaning head (see FIG. 4). If the corner element 124 is considered as an arrow, then such an arrow is directed with its tip towards the front edge 74 of the cleaning head.

A locking device 152 is provided which locks the first position 140 of the rod-grip device 100, and in this case, in particular, locks it by means of force closure.

In one exemplary embodiment of the invention, the locking device 152 is made in the form of a magnetic device that ensures the fixation of the rod-grip device 100 in the first position 140 relative to the cleaning head 52 due to the forceful closing of the magnetic holding forces.

In one embodiment of the invention, the locking device 152 includes a magnet 154 located on the cleaning head 52. The magnet 154 is part of a magnetic system, made in the form of a magnetic system with a sandwich structure and designated by the number 156. In this magnet system 156, the magnet 154 is located between two poles 158 from sheet iron. In the magnetic system 156, its sandwich structure increases the magnetizing force.

The magnet system 156 is positioned so that in the first position 140 it acts on the second part 128 of the connecting element 120. it from the side opposite to the solution 132.

The magnet system 156 generates a magnetic holding force, this holding force acting on the second part 128. The coupling element 120 in its second part 128 is made of an appropriate material, such as a ferromagnetic material, to participate in generating the corresponding holding force.

When the rod-grip device 100 is in the first position 140 relative to the cleaning head 52, while the second part 128 is adjacent to the magnetic system 156, the magnetic system 156 creates a corresponding holding force that fixes this first position 140, i. hold the handle-rod device. To bring the handle-rod device 100 out of the first position 140, a certain force must be applied to it.

The magnetic system 156 in combination with the connecting element 120 is designed, in particular, so that when the machine 50 for cleaning surfaces with the handle-rod device 100, located in the first position 140 relative to the cleaning head 52 and fixed in this first position 140, is placed on the base with a slope of 10° relative to the direction of gravity, the handle-rod device 100 will not spontaneously (under the action of gravity) leave the first position 140. Thus, with such a slope of (at least) 10°, the handle-rod device remains fixed in the first position 140.

In the exemplary embodiment of the invention, the second part 128 of the connecting element 10 is designed so that it can be fixed by a magnetic holding force. In principle, it is also possible that an additional element, such as a ferromagnetic element, is provided on the second part 128 to provide a suitable holding force.

The magnetic system 156 is located at the cavity 112. It may be located partially within the cavity 112.

In particular, the generating plane 110 is defined by the magnetic system 156.

When the handlebar device is in the first position 140, the surface cleaning machine 50 has its greatest extension in the height direction 94 .

The transfer of the handle-rod device from the first position 140 to the second position 142 is carried out by turning the handle-rod device at the above-mentioned angle of inclination, which is, for example, about 90°.

When the handle-bar device 100 is in the second position 142 (FIGS. 7-11), the longitudinal axis 146 of the handle-rod device 100 is oriented at least approximately parallel to the cleaning head 52 and, in particular, at least approximately parallel to generatrix plane 92 or generatrix plane 110. In this case, the expression "at least approximately" means the tolerance of deviation from strict parallelism within ±10° or ±5°.

In particular, in this case, the first part 126 of the connecting element 120 is oriented at least approximately parallel to the cleaning head 52 (in particular, parallel to the generatrix plane 92).

When the handle-rod device 100 is in the second position 142, its second part 128 is oriented at an acute angle 160 (see Fig. 9) to the cleaning head 52 (to the generatrix plane 92 or to the generatrix plane 110). In this case, an acute angle of 160 corresponds to the difference of 180° and an obtuse angle β (pos. 130). If we designate an acute angle 160 with the symbol γ, then it will be determined by the expression γ=180°-β.

In this case, the solution 132 of the connecting element 120 is positioned in such a way that it "absorbs" the section of the upper side 90 located at the depression 112 (see, for example, Fig. 9).

When the handle-rod device 100 is in the second position 142, the dimensions of the machine 50 for cleaning surfaces in the direction 94 of the height are the smallest. In fact, when the handle-rod device is in the second position 142, the surface cleaning machine 50, together with the handle-rod device 100, has a height H.

The handle-rod device 100 has a section 162 facing the cleaning head 52 and having an extension transverse with respect to the longitudinal axis 146. This section 162 is formed, for example, on the body of the handle-rod device 100. When the handle-rod device is in the second position 142, this portion 162 faces the trailing edge 76 of the cleaning head 52 (see, for example, FIG. 8).

In addition, in particular, when the handle-rod device is in the second position 142, this section 162 of the handle-rod device 100 is located below the upper side 90 of the cleaning head 52.

The handle-rod device 100 is in particular located and designed with respect to the cleaning head 52 so that it does not protrude with its lower side 164 (see FIG. 8) beyond the generatrix 92 and, in particular, is spaced from it.

On the handle-rod device 100 is located, for example, a reservoir device for cleaning fluid. In one embodiment of the invention, a suction unit may be located on the handle-rod device 100. If the surface cleaning machine 50 is powered by a battery, a battery holder with a battery is arranged on the handgrip device 100 in particular.

Between the cleaning head 52 and the handle-rod device 100 there is a cover 166 (see Fig. 3, Fig. 5; in Fig. 4, 6, 7, 8, 9 this cover 166 is not shown).

In the case 166 is located the connecting element 120. The case 166 closes the hinge device 96. In this case, the case 166, in particular, contacts the cleaning head 52 on its upper side 90 or on the surface 98 and accordingly contacts the handle-rod device 100. The case 166 provides hermetic seal.

In particular, the sheath 166 also covers the cavity 112 or its opening 114.

Cover 166 is made, for example, in the form of a textile or rubber shell (bag).

The connecting element 120 may be an integral part of the rod-grip device 100, or it is, for example, a separate part from the rod-grip device 100, connected to the rod-grip device 100 by a threaded connection, a welded connection, or other suitable connection methods.

In an alternative embodiment of the invention, a connecting element 120' is used, made in an arcuate shape (Fig. 20(a), 20(b)). This arcuate element 120' has a first part 126' connected to the rod-grip device 100 and a second part 128' connected to the swivel device 96. The first part 126' flows to a certain extent continuously into the second part 128'.

The first part 126' and the second part 128' of such a connecting element are located to each other at an obtuse angle 130', measured along the respective tangent or generatrix planes.

Execution of the connecting element 120' curved (due to its execution in the form of an arcuate element) provides a distance of its first part 126' in the transverse direction 129 relative to the second part 128'. From this follow the advantages described above with regard to the connecting element 120; in the first position 140 of the handle-rod device 100 relative to the cleaning head 52 (moreover, the handle-rod device 100 is connected to the cleaning head 52 through the connecting element 120'), a locking device 152 can be realized by means of the connecting element 120'. In particular, the section of the connecting element 120 ' can be used as a mating element (holding device) for a magnet.

In the second position 142 (FIG. 20(b)) a low height of the surface cleaning machine, measured in the height direction 94, can be provided. However, to minimize the height measured in the height direction 94, the cleaning head 52 does not need to be modified in relation to the cleaning roller assemblies 60, 66; in particular, the cleaning head 52 need not be provided with a recess in the area of the cleaning roller assemblies 60, 66. The minimization of the height does not affect the function or the cleaning process. The second cleaning roller assembly 66 as the rear cleaning roller assembly may be identical to the first cleaning roller assembly 60.

In another example of the execution of the connecting element 120'' (Fig. 21(a), 21(b)) it has a first part 126'' connected to the second part 128'' transverse jumper 127''. The first part 126'' is connected to the handle-rod device 100. The second part 128'' is connected to the hinge device 96. The first part 126'' and the second part 128'' are not directly connected to each other, and the transverse jumper 127'' forms between the first part 126'' and the second part 128'' connecting section.

The first part 126'' and the second part 128'' are made, for example, in the form of strip elements.

In addition, the transverse web 127'' can also be made in the form of a strip.

The transverse jumper 127'' is oriented across the first part 126'' and the second part 128'' of the connecting element.

In the shown in FIG. 21(a) and 21(b) of the exemplary embodiment, the first part 126'' and the second part 128'' are oriented parallel to each other. The transverse bridge 127'' is oriented perpendicular to the first part 126'' and the second part 128''.

Other embodiments of the connecting element are also possible, for example, its execution in a Z-shape.

The first part 126'' and the second part 128'' of the connecting element are spaced apart from each other by a transverse bridge 127'' in the transverse direction 129.

It is provided that when the handle-rod device 100 is in the first position 140 (FIG. 21(a)) relative to the cleaning head 52, the second part 128'' is oriented across the cleaning head 52 and, for example, perpendicular to it.

When the handle-bar device is in the second position 142, the second part 128'' is oriented relative to the cleaning head 52 (Fig. 21(b)), for example, at least approximately parallel (i.e. at zero angle or at a small angle, close to 0°).

The use of the connector 120, 120' provides the advantages discussed above in terms of minimizing the height of the surface cleaner when the handle bar is in the second position 142.

In one embodiment of the invention, the boot 166 is in the form of a bellows 168 (FIG. 13).

On the cleaning head 52 is a drive device 170 to rotate the first shaft 56 and the second shaft 62 (and respectively the first cleaning roller assembly 60 and the second cleaning roller assembly 66) (Fig. 5, 8, 14-18).

The drive device 170 is located geometrically between the first cleaning roller assembly 60 and the second cleaning roller assembly 66.

The drive device 170 includes a drive motor 172, which is an electric motor. The drive motor 172 is supplied with mains current, or a battery device is provided, in particular a rechargeable battery device, located, in particular, on the hand-grip device 100 and supplying the drive motor 172 with a corresponding stored battery current.

The drive motor 172 has a shaft 174. On the motor shaft 174, a drive gear 176 is fixed against rotation. The motor shaft 174 rotates about a rotation axis 178 (drive axis). The rotation axis 178 runs in particular parallel to the first rotation axis 58 and the second rotation axis 64 of the respective cleaning roller assemblies 60, 66.

In this case, the axis of rotation 178, in particular, runs parallel to the first axis 104 of rotation.

The drive motor 172 is located, in the direction 94 height, above the storage device 86 for dirty liquid.

In one embodiment of the invention, the engine speed (speed of engine shaft 174) is about 6400 rpm.

The speed required for the cleaning roller assembly 60, 66 is in the region of 500 rpm.

The drive device 170 includes a transmission mechanism 180. The transmission mechanism 180 solves, in particular, the tasks of reducing the speed of the motor shaft 174 and closing the distance in space between the motor shaft 174 and the shafts 56, 62, and in one embodiment of the invention also provides a drive as the first cleaning roller assembly 60 and the second cleaning roller assembly 66 from a single drive motor 172. In particular, this provides for the rotation of the first cleaning roller assembly 60 and the second cleaning roller assembly 66 in opposite directions.

In FIG. 14, the first direction of rotation, in which the first cleaning roller assembly 60 rotates about the first rotation axis 58, is indicated by 182. The corresponding second direction of rotation, in which the second cleaning roller assembly 66 rotates about the second rotation axis 64, is indicated by 184.

In this embodiment, the first direction of rotation 182 and the second direction of rotation 184 are opposite, ie. the cleaning roller units 60, 66 are driven by the drive device 170 into counter-rotation.

In this case, the directions 182, 184 of rotation, in particular, are such that a certain section 186 of the cleaning roller assembly (in the example shown in FIG. liquids. Due to this, the contaminants removed and carried by the cleaning roller assembly 60 travel to the dirty liquid storage device 86 in a shorter way than if the cleaning roller assembly rotated in the opposite direction.

The transmission mechanism 180 includes a gear mechanism 188. The gear mechanism 188 is directly connected to the motor shaft 174. In particular, the gear mechanism 188 includes a two-stage gearbox.

The transmission mechanism 180 also includes a belt transmission device 190. The belt transmission device 190 couples the gear mechanism 188 to the shafts 56, 62 to transmit torque to the latter.

In one embodiment, the belt drive 190 includes a first part 192 and a second part 194. The first part 192 of the belt drive 190 couples the gear 188 to the first shaft 56 to transmit torque to the latter. The second part 194 of the belt transmission device 190 connects the gear mechanism 188 with the second shaft 62 in order to transmit torque to the latter.

Belt transmission device 190 is made, in particular, as a single-stage downshift.

The gear mechanism 188 includes a first gear assembly 196 having a first driven wheel 198 and a first gear 200. The first gear 200 is connected to the first driven wheel 198 with a lock against mutual rotation. The first block of gears 196 is mounted for rotation about the first axis 202 of rotation (Fig. 18). The first axis 202 of rotation, with the possibility of rotation around which the block 196 gears, runs parallel to the axis 178 of rotation of the shaft 174 of the motor. The first driven wheel 198 is engaged with the drive gear 176 to receive torque from it; the drive gear 176 drives the first gear set 196 into rotation.

The gear mechanism 188 includes a second gear assembly 204 having a second driven wheel 206 and a second gear 208. The second gear 208 is connected to the second driven wheel 206 in an anti-rotation manner.

The second block 204 gears is installed with the possibility of rotation about the second axis 210 of rotation. The second axis 210 of rotation runs parallel to the first axis 202 of rotation.

The second driven wheel 206 is engaged with the first gear 200 to receive torque from it.

By engaging a drive gear 176 having a smaller diameter than the first driven gear 198, a first reduction stage is formed.

In one embodiment of the invention, the gear ratio of this first stage is 11:34.

The first gear 200 has a smaller diameter than the second driven wheel 206. The second reduction stage is formed by their meshing.

In one embodiment of the invention, the gear ratio of the second reduction stage is 14:29.

The first part 192 of the belt transmission device 190 includes a first belt 212. This first belt 212 is connected to the first shaft 56 via a first pulley 214 connected to the first shaft 56 in a rotation-resistant fashion.

In one embodiment of the invention, the belt transmission device 190 includes a first guide element 216 that deflects the direction of movement of the first belt 212.

By means of the first belt 212, a kinematic connection with the transmission of rotation between the gear mechanism 188 and the first shaft 56 spaced from it in the longitudinal direction 72 of the cleaning head 52 is achieved.

The second gear 208 has a smaller diameter than the first pulley 214. This creates another reduction stage.

In one embodiment of the invention, the gear ratio of this third reduction stage is 15:30.

The gear mechanism 188 includes a third gear assembly 218 having a third driven wheel 220 and a third gear 222 (FIG. 17). The third block 218 gears is installed with the possibility of rotation around the third axis 224 of rotation. The third axis 224 of rotation runs parallel to the first axis 202 of rotation.

The third driven wheel 220 is made in the same way as the second driven wheel 206, and is engaged with the second driven wheel 206. The direction of rotation of the third block of gears 218 is opposite to the direction of rotation of the second block of gears 204.

The third gear 222 is identical to the second gear 208.

The second part 194 of the belt transmission device 190 is connected with the third block 218 gears to ensure that it receives torque.

It includes a second belt 226 seated on a third gear 222 and directed to a second pulley 228 mounted on the second shaft 62 with fixation against rotation relative to it. The direction of movement of the second belt 226 is deflected by the second guide element 230.

The second part 194 of the belt transmission device 190 functions similarly to the first part 192.

The reduction in speed occurs in the same way as the interaction of the second block of gears 204 with the first part 192 of the belt transmission device 190. The second block of gears 204 is driven through the first block of gears 196, and the second block of gears 204, in turn , is in direct engagement with the third block 218 gears and causes it to rotate.

The overall gear ratio of the speed-reducing multi-stage transmission mechanism 180 is, in particular, from 1:10 to 1:15 and, for example, is approximately 1:12.5, and the correspondingly high speed of the motor shaft 174 is reduced to the speed of the cleaning roller units 60, 66, which is about 500 rpm.

Shafts 56, 62 are provided with a central drive.

The respective first pulley 214 and the second pulley 228 are located centrally between the outer ends 232a, 232b of the respective shafts 56, 62. In this case, the respective shaft 56, 62 has a first seat 234 and a second seat 236. Between them is the corresponding pulley 214, 228 The first seat 234 and the second seat 236 are surrounded by a cleaning medium, such as a textile upholstery. In the region of the respective pulley 214, 228, the cleaning medium 70 is absent.

Through the use of such a central drive, the respective cleaning roller units 60, 66 are made in two parts.

Such an embodiment of the two-piece centrally driven cleaning roller assemblies makes it possible to clean the edge portions of the surface.

The drive motor 172 of the drive device 170 is located in the housing 238 (FIG. 14). The transmission mechanism 180 is located in the transmission housing 240. In particular, the transmission housing is connected to the housing 238 of the drive motor 172 or forms a common housing with it.

Hinge device 96 is located on the cleaning head 52 above the housing 238 of the drive motor.

In one embodiment of the invention, a free space 242 adjoins the drive device 170, and in particular the combination of the drive motor housing 238 and the transmission housing 240. drive motor and transmission housing 240.

The area 244 and the free space 242, in particular, are located, in the width direction 78 of the cleaning head 52, at least approximately in the middle on the cleaning head 5.

In the free space 242 and in the area 244, in particular, a hinge device 96 is located, or in this area 244 in this free space 242, a depression 112 is located. This ensures a compact design with an optimized use of structural space. This achieves a small height N.

In particular, in the free space 242 is the first axis 104 of rotation.

At the same time, in order to obtain a compact design of the cleaning head 52, the mutual arrangement of the axis 178 of the drive and the first axis 104 of rotation is provided as close as possible, in particular, their location at a distance of no more than 5 cm and preferably no more than 3 cm.

It is provided that, in particular, in the direction 78 of the width of the hinge device 96, containing the first hinge 102 and the second hinge 106, is located in the middle of the cleaning head 52. In the longitudinal direction 72 of the cleaning head, passing between its front edge 74 and the rear edge 76 , the hinge device 96 is preferably located in the middle or near the middle with a slight offset towards the rear edge 76, i.e. the hinge device 96 is located, in the longitudinal direction 72, closer to the rear edge 76 than to the front edge 74, and in the longitudinal direction 72, the hinge device 96 is located closer to the middle than to the rear edge 76 and than to the front edge 74.

The surface cleaning machine 10 functions as follows:

During operation, the operator holds the handle-rod device 100 by the handle. The cleaning head 52 is placed with its cleaning roller units 60, 64 on the surface 18 to be cleaned. An operator also stands on it. The movement of the surface cleaning machine 50 is manually controlled.

By pivoting the handle bar 100 around the first pivot axis 104, the operator can adapt the machine to suit their height.

The ability to rotate the handle-rod device 100 on the cleaning head 52 around the first axis 104 of rotation and around the second axis 108 of rotation provides convenience for the operator to perform cleaning.

In particular, by acting on the rod-handle device 100, the operator can direct the movement of the cleaning head 52 along the surface 18 to be cleaned.

When the surface cleaning machine 50 performs cleaning, the first cleaning roller assembly 60 and the second cleaning roller assembly 66 are rotated by the driving device 170. In particular, they are driven in opposite directions.

By means of the dampening device, the cleaning roller units 60, 66 are wetted with a cleaning liquid (fresh water or a mixture of fresh water and detergent). This contributes to a better separation of contaminants.

The moistened soft skin (humidified cleaning medium 70) of the cleaning roll assemblies 60, 66 acts on the contaminants of the surface 18 to be cleaned. The contaminants are separated from the surface and carried by the cleaning roller assemblies 60, 66, from which they are discharged into the dirty liquid storage device 86. If necessary, the removal of dirty liquid can be carried out by means of or by means of a suction stream generated by the suction unit.

The handle-bar device 100 can be moved to the first position 140. This is a kind of parking position. Being in the first position 140, the handle-rod device 100 is fixed (from spontaneous displacement from this position) by the locking device 152.

When the handle bar device 100 is in the second position 142, the surface cleaning machine 50 has a minimum height measured in the height direction 94 . This allows, for example, the surface cleaning machine 50 to be stored compactly when not in use for cleaning.

In addition, with the handlebar device 100 in the second position 142, the surface cleaning machine 50 has a minimum height during cleaning, which ensures the optimal ability of the machine to go under furniture and other similar objects.

The drive unit 170 is compactly designed and compactly mounted on the cleaning head 52. Through the use of a multi-stage reduction gear of the transmission mechanism 180, the drive motor 172 can be made of small geometric dimensions, which again ensures that the height H of the cleaning head 52 is low.

The machine has an optimized ability to clean the edge areas of the surfaces with the sides 80, 82 of the cleaning head, but also with its front edge 74 and rear edge 76.

In addition, due to this arrangement of the driving device 170, the surface cleaning machine 50 has a low center of gravity. This gives optimized handling with little risk of rollover.

The use of spaced cleaning roller units 60, 66 eliminates the need for additional drive or support rollers, which can leave marks on the cleaned surface 18, i.e. does not deteriorate the appearance of the surface after cleaning.

The ease of use of the surface cleaning machine is optimized while optimizing its functionality.

The described arrangement and execution of the drive device 170 also makes it possible to implement the cleaning head 246 (shown in broken lines in Fig. 14) without the handle-rod device 100 installed on it. cleaner").

In this case, too, no corresponding hinge device needs to be provided.

Such a cleaning head 246 - in particular in the form of a self-propelled and self-guided apparatus - has the advantages described above associated with a low overall height (corresponding to the height H). This provides, in particular, an optimized ability of the machine to go under furniture and other similar objects. Also provided is the ability of the machine to clean the edge portions of the surfaces both on its front and back side, and on both sides.

A suitable cleaning head 246 may, for example, be provided with a swivel roller 248 or the like, which makes it possible to guide the movement of the machine over the surface 18 to be cleaned without the application of control forces by the operator.

Otherwise, such cleaning head 246 functions in the same way as the apparatus described above.

List of reference designations:

10 sweeper

12 cleaning head

14 cleaning tool

16a first cleaning roller assembly

16b second cleaning roller assembly

18 cleaning surface

20 handle-rod device

21 operators

22 handle

24 articulated device

26 first hinge

28 first axis of rotation

30 direction of travel "straight ahead"

32 direction of travel "straight back"

34 first position

36 second position

38 second hinge

40 second axis of rotation

42 humidifier

44 fresh water tank device

46 dirty liquid storage device

50 surface cleaning machine

52 cleaning head

54 head body

56 first shaft

58 first axis of rotation

60 first cleaning roller assembly

62 second shaft

64 second axis of rotation

66 second cleaning roller assembly

68 sleeve

70 cleaning medium

72 longitudinal direction

74 cutting edge

76 trailing edge

78 width direction

80 first side

82 second side

84 overlapping element

86 dirty liquid storage device

88 underside

90 top side

92 generatrix

94 height direction

96 articulated device

98 surface

100 rod-handle device

102 first hinge

104 first axis of rotation

106 second hinge

108 second axis of rotation

110 generatrix

112 hollow

114 hole

116 finger

118 shaft

120, 120', 120'' connector

122 bottom side

124 corner element

126, 126', 126'' the first part of the connecting element

127'' cross bar

128, 128', 128'' the second part of the connecting element

129 cross direction

130, 130', 130'' obtuse angle

131 matching curves

132 solution

134 finger

136 hole

138 locking element

140 first position

142 second position

144 neutral position

146 longitudinal axis

148 right angle

150 obtuse angle

152 locking device

154 magnet

156 magnetic system

158 iron pole

160 acute angle

162 plot

164 bottom side

166 case

168 bellows

170 drive unit

172 drive motor

174 motor shaft

176 drive gear

178 rotation axis (drive axis)

180 gear

182 first direction of rotation

184 second direction of rotation

186 plot

188 gear mechanism

190 belt drive

192 the first part of the belt transmission device

194 second part of belt transmission

196 first set of gears

198 first driven wheel

200 first gear

202 first axis of rotation

204 second gear set

206 second driven wheel

208 second gear

210 second axis of rotation

212 first belt

214 first pulley

216 first guide element

218 third gear set

220 third driven wheel

222 third gear

224 third axis of rotation

226 second belt

228 second pulley

230 second guide

232a shaft end

232b shaft end

234 first landing unit

236 second landing part

238 building

240 transmission housing

242 free space

244 plot

246 cleaning head

248 swivel roller.

Claims (68)

1. A harvester containing a cleaning head (12; 52), a handle-rod device (20; 100) and a swivel device (24; 96), through which the handle-rod device (20; 100) is articulated with the cleaning head (12; 52) with the possibility of rotation relative to it, characterized in that on the handle-rod device (20; 100) there is a connecting element (120; 120'; 120'') having the first part (126; 126'; 126'') and the second part (128; 128'; 128'') spaced from the first part (126; 126'; 126'') in the transverse direction (129) oriented across the longitudinal axis (72; 146) of the handle-rod device, the second part (128; 128'; 128'') of the connecting element (120; 120'; 120'') is connected to the first hinge (26; 102) of the hinge device (24; 96) having the first axis (28; 104) of rotation, and the first part (126; 126'; 126'') - with a handle-rod device (20; 100) and the connecting element is made in the form of a corner element (120; 120''). 2. The harvester according to claim 1, characterized in that the second part (128; 128') is located at an angle (130; 130') to the first part (126, 126') or between the first part (126'') and the second part (128'') is a transverse jumper (127''). 3. Harvesting machine according to claim 1 or 2, characterized in that the first part (126; 126'; 126'') is oriented coaxially with the longitudinal axis (72; 146) of the handle-rod device (20; 100). 4. The cleaning machine according to one of the preceding claims, characterized in that at least one cleaning tool (14; 60, 66) is located on the cleaning head (12; 52), and the cleaning machine has at least one of the following characteristics: - the pivot axis (104) of the hinge (102) is oriented parallel to the flat surface (18) on which the cleaning head (12; 52) is supported by at least one cleaning tool (14; 60, 66) when the cleaning machine is used for its intended purpose; - the axis (104) of rotation is oriented parallel to the generatrix plane (92) of at least one cleaning tool (14; 60, 66), characterizing its contact with the surface being cleaned (18); - axis (104) of rotation is oriented parallel to the axis (58; 64) of rotation of at least one cleaning tool (14; 60, 66); - the pivot axis (104) is oriented parallel to the width direction (78) of the cleaning head (52) between the first side (80) and the second side (82); - the axis (104) of rotation is oriented transversely to the direction of movement (30) of the cleaning head (52) straight ahead when using the harvester for its intended purpose; - the axis (104) of rotation is located inside the cleaning head (52) between the lower side (88) of the cleaning head (52) and the upper side (90) of the cleaning head (52) in the height direction (94) passing between the lower side (88) of the cleaning heads (52) and the top side (90) of the cleaning head (52); - the cleaning head (52) has a front edge (74) and a rear edge (76), and it extends in the longitudinal direction (72) passing between the front edge (74) and the rear edge (76), and the pivot axis (104) passes across the longitudinal direction (72) of the cleaning head (52); - hinge (102) and/or axis (104) of rotation are located between the front edge (74) and the rear edge (76) of the cleaning head (52) and are located in the longitudinal direction (72) of the cleaning head (52) in the middle between the front edge ( 74) and the rear edge (76) or closer to the middle than the front edge (74) and than the back edge (76); - the hinge (102) and/or the axis (104) of rotation is in the longitudinal direction (72) of the cleaning head (52) closer to the rear edge (76) than to the front edge (74). 5. Cleaning machine according to one of the preceding claims, characterized in that the connecting element (120; 120'; 120'') has an opening (132) facing the rear edge (76) of the cleaning head (52). 6. A cleaning machine according to one of the preceding claims, characterized in that a cavity (112) is located or formed on the cleaning head (52), in which a hinge (102) is located. 7. Harvesting machine according to claim 6, characterized in that the axis (28; 104) of rotation is located in the cavity (112) or under it. 8. The harvester according to one of the previous paragraphs, characterized in that the handle-rod device (20; 100) has a first position (34; 140) relative to the axis (28; 104) of rotation, and the harvester has at least one of the following characteristics: - handle-rod device (20; 100) is located across the cleaning head (12; 52) along the longitudinal direction (146) of the handle-rod device (20; 100), and the angle between the longitudinal direction (146) of the handle-rod device (20; 100) and cleaning head (12; 52) is between 75 and 105°; - the first part (126) of the connecting element (120) is located across the cleaning head (12; 52), and the angle between the first part (126) and the cleaning head (12; 52) is from 75 to 105°; - the cleaning machine has its maximum height in the height direction (94) passing between the bottom side (88) of the cleaning head (12; 52) and the top side (90) of the cleaning head (12; 52); - the second part (128; 128'; 128'') of the connecting element (120; 120'; 120'') is located across the cleaning head (52); - the second part (128) of the connecting element (120) is oriented at an obtuse angle (150) to the cleaning head (52) in relation to the gap (132) of the connecting element (120) between the first part (126) and the second part (128); - an obtuse angle (150) defining the orientation of the second part (128) with respect to the cleaning head (52) corresponds to the difference of 270° and the obtuse angle (130) between the first part (126) and the second part (128). 9. Harvesting machine according to claim 8, characterized in that it contains a locking device (152) for fixing the first position (140) due to force closure. 10. Cleaning machine according to claim 9, characterized in that the locking device (152) is designed so that when the cleaning head (52) is placed on the base with a slope of 10 ° relative to the horizontal in the direction of gravity, the handle-rod device remains in the first position (140). 11. The harvester according to claim 9 or 10, characterized in that the locking device (152) comprises a magnetic device. 12. Harvester according to one of paragraphs. 7-9, characterized in that the fixing device (152) contains the first element (156) located or formed on the cleaning head (52), and the second element (128) located or formed on the connecting element (120), and the first element (156) and the second element (128) interact to fix the first position (140) due to force closure. 13. The harvester according to claim 12, characterized in that the second element (128) is located or formed on the second part (128; 128'; 128'') of the connecting element (120; 120'; 120''). 14. The cleaning machine according to claim 12 or 13, characterized in that the first element is or contains a magnet (154) located on the cleaning head (52), and the second element (128) is a latch for interacting with the magnet (154) . 15. The harvester according to claim 14, characterized in that the magnet (154) is part of a magnetic system (156) with a sandwich structure. 16. The harvester according to one of the previous paragraphs, characterized in that at least one cleaning tool (14; 60, 66) is located on the cleaning head (12; 52), and the handle-rod device (20; 100) has a second position (142) about the pivot axis (28; 104), wherein the harvester has at least one of the following characteristics: - handle-rod device (20; 100) and / or the first part (126; 126'; 126'') of the connecting element (120; 120'; 120'') is oriented (a), along the longitudinal axis (146) of the handle- rod device (20; 100), parallel to the generatrix of the plane (92) of at least one cleaning tool (14; 60, 66); - the cleaning machine has its minimum height H in the height direction (94) passing between the bottom side (88) of the cleaning head (52) and the top side (90) of the cleaning head (52); - section (162) of the handle-rod device (100) faces at least one cleaning head (52) and is located below the upper side (90) of the cleaning head (52); - the second part (128; 128'; 128'') of the connecting element (120; 120'; 120'') is oriented along the solution (132) of the connecting element (120; 120'; 120'') between its first part (126; 126'; 126'') and the second part (128; 128'; 128'') at a zero angle or at an acute angle (160) to the cleaning head (52); - an acute angle (160) defining the orientation of the second part (128; 128') relative to the cleaning head (52), corresponds to the difference of 180° and an obtuse angle (130; 130') between the first part (126; 126') and the second part ( 128; 128') of the connecting element (120; 120'); - the handle-rod device (20; 100) does not protrude or protrudes no more than 5 cm beyond the upper side (90) of the cleaning head (52). 17. Harvesting machine according to one of the previous paragraphs, characterized in that the handle-rod device (20; 100) is installed with the possibility of rotation around the axis (28; 104) of rotation between the first position (34; 140) and the second position (36; 142 ), and the angular distance between the first position (34; 140) and the second position (36; 142) is from 80 to 100°. 18. The cleaning machine according to one of the previous paragraphs, characterized in that the articulated device (24; 96) is located and designed so that the movement of the cleaning head (12; 52) along the surface (18) to be cleaned is directed by means of control actions created on the handle rod device (20; 100). 19. Harvesting machine according to one of the previous paragraphs, characterized in that the hinge device (24; 96) contains, as the aforementioned hinge, the first hinge (26; 102) with the first axis (28; 104) of rotation, and also contains the second hinge (38 ; 106) with a second axis (40; 108) of rotation, and the second axis (40; 108) of rotation is oriented across the first axis (28; 104) of rotation. 20. The harvester according to claim 19, characterized in that the second axis (40; 108) of rotation crosses the first axis (28; 104) of rotation or crosses with it at a distance of no more than 2 cm from it. 21. The harvester according to claim 19 or 20, characterized in that the second axis (108) of rotation passes through the second part (128; 128'; 128'') of the connecting element (120; 120'; 120''). 22. Harvester according to one of paragraphs. 19-21, characterized in that on the second part (128; 128'; 128'') of the connecting element (120; 120'; 120'') there is an element (134) of the second hinge (106), which allows rotation around the second axis (108) rotation. 23. A harvester according to one of the preceding claims, characterized in that it has at least one of the following characteristics: - the hinge device (96) is located along the longitudinal axis (72) of the cleaning head (52) between the first cleaning tool (60) and the second cleaning tool (66), the cleaning tools (60, 66) being made in the form of cleaning rollers; - the hinge device (96) is located in the direction (94) of the height of the cleaning head (52), passing between the bottom side (88) of the cleaning head (52) and the upper side (90) of the cleaning head (52), above the storage device (86) for dirty liquid; - the hinge device (96) is located in the direction (94) of the height of the cleaning head (52), passing between the lower side (88) of the cleaning head (52) and the upper side (90) of the cleaning head (52), above the drive device (170); adjoining the drive device (170) is a free space (242) in which the hinge device (96) is located at least partially. 24. Cleaning machine according to one of the previous paragraphs, characterized in that the articulated device (96) is equipped with a cover (166) located on the cleaning head (52) and the handle-rod device (100). 25. The harvesting machine according to one of the previous claims, characterized in that the drive device (170) contains a drive motor (172) located in the longitudinal direction (72) of the cleaning head (52; 246) between the first roller assembly (60) and the second roller assembly (66), and a transmission mechanism (180) that provides torque transmission from the drive motor (172) to the first roller assembly (60) and to the second roller assembly (66), wherein the transmission mechanism (180) contains a gearbox, and the rotational speed of the first roller assembly (60) and the rotational speed of the second roller assembly (66) is less than the rotational speed of the drive motor (172). 26. The harvester according to claim 25, characterized in that the gear ratio of the gearbox, which reduces the speed of the drive motor (172) to the speed of the rollers, is from 1:10 to 1:15, and the speed of the rollers is from 400 to 600 rpm. 27. The harvester according to claim 25 or 26, characterized in that the transmission mechanism (180) is designed so that the first roller assembly (60) and the second roller assembly (66) rotate in opposite directions. 28. Harvester according to one of paragraphs. 25-27, characterized in that the gearbox is made multi-stage. 29. Harvester according to one of paragraphs. 25-28, characterized in that the transmission mechanism comprises a gear mechanism (188) acting as a two-stage gearbox, and a belt transmission device (190) acting as a single-stage reduction gear, and the belt transmission device (190) is associated with a gear mechanism ( 188) to ensure that torque is received from it. 30. The harvester according to claim 29, characterized in that the belt transmission device (190) is connected to the corresponding shaft (56; 62) of the corresponding roller assembly (60; 66) with the transmission of torque to it. 31. The harvester according to claim. 29 or 30, characterized in that the gear mechanism (188) contains the first block (196) of gears associated with the drive motor (172), and the second block (204) of gears associated with the first block (196) gears and with belt drive (190). 32. The harvester according to claim 31, characterized in that the gear mechanism (188) comprises a third gear unit (218) associated with a second gear unit (204) and with a belt transmission device (190). 33. The harvester according to claim 32, characterized in that the second block (204) of gears is connected to the first part (192) of the belt transmission device (190), which is connected to the first roller assembly (60), and the third block (218) gear wheels is connected with the second part (194) of the belt transmission device (190), which is connected with the second roller assembly (66). 34. Harvester according to one of paragraphs. 25-33, characterized in that it has at least one of the following features: - the axis (178) of the drive motor (172) is oriented parallel to the axes (58, 64) of rotation of the roller units (60; 66); - the axis (178) of the drive motor drive (172) is oriented parallel to the axis (28; 104) of rotation of the hinged device (24; 96); - the axis (178) of the drive motor drive (172) and the axis (28; 104) of rotation are located at a distance of no more than 5 cm from each other. 35. The harvesting machine according to one of the previous paragraphs, characterized in that the cleaning head (52; 246) has the first roller assembly (60) and the second roller assembly (66), each of which is made up of two parts, and the drive device ( 170) is located in the middle and connected with the corresponding roller nodes (60; 66) to ensure the transfer of rotation to them. 36. The harvester according to claim 35, characterized in that the roller units (60; 66) reach the side edge of the cleaning head (52; 246). 37. The harvesting machine according to one of the previous paragraphs, characterized in that it contains the first roller assembly (60) and the second roller assembly (66), wherein the first roller assembly (60) and/or the second roller assembly (66) are made in the form of cleaning rollers and have textile soft lining. 38. The cleaning machine according to one of the preceding claims, characterized in that the cleaning head (52; 246) has a height (H) measured in the height direction (94) passing between the underside (88) of the cleaning head (52; 246) and upper side (90) of the cleaning head (52; 246), and a component of no more than 20 cm. 39. Harvester according to one of paragraphs. 25-38, characterized in that it is made in the form of a self-propelled and self-guided vehicle (246). 40. Harvester according to one of paragraphs. 1-38, characterized in that it is made in the form of a machine (50) with manual control for cleaning surfaces.

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