Floor cleaning machine with at least one support element

Abstract

The invention relates to a floor cleaning machine having at least one support element, comprising a cleaning head (12), a handle device (36) connected to the cleaning head, at least one cleaning roller unit (18) arranged on the cleaning head, and a dirty fluid tank device (32) arranged in a removable manner on a base (30) of the cleaning head, on which base at least one support element (120) is arranged, which is spaced apart from the at least one cleaning roller unit, wherein, in a cleaning operation, the cleaning head (12) is supported on a floor (16) to be cleaned via the at least one cleaning roller unit (18) and the at least one support element (120), and the dirty fluid tank device (32) has a recess (152) which is through-going and which is associated with the at least one support element (120), the at least one support element (120) being guided through the recess when the dirty fluid tank device (32) is placed on the cleaning head (12).

Description

Technical Field

[0001] The present invention relates to a floor cleaning machine, which includes a cleaning head, a handle connected to the cleaning head, at least one cleaning roller unit arranged on the cleaning head, and a dirty fluid tank device arranged in a removable manner on the base of the cleaning head. Background Technology

[0002] DE 20 2015 101 302 U1 discloses a cleaner in the form of a vacuum cleaner.

[0003] A surface cleaning machine is known from WO 2016 / 058901 A1, WO 2016 / 058856 A1, WO 2017 / 063663A1, WO 2016 / 058879A1, and WO 2016 / 058956 A1. Another surface cleaning machine is also known from WO 2016 / 058907A1.

[0004] A portable floor cleaning device is known from US 4,875,246, which has a roller driven by an electric motor.

[0005] DE 20 2009 013 434 U1 describes a device for wet cleaning of floors, which has a brush that can rotate about an axis of rotation.

[0006] A cleaning machine is known from CN 201 197 698Y.

[0007] A device for cleaning floors or other hard surfaces is known from US 6,026,529.

[0008] A surface cleaning machine with a rotating brush is described in WO 2010 / 041185 A1.

[0009] A cleaning head for a floor cleaning machine is known from US 7,665,174 B2.

[0010] A floor cleaner is known from US 4,173,054, which includes a handle, a body, a roller mechanism having a roller with a cleaning belt, a scraper, and a dirty fluid reservoir.

[0011] A surface cleaning machine having a cleaning roller and a drive unit for driving the cleaning roller is known from WO 2013 / 106762 A2. A dirt housing is provided into which the cleaning roller sweeps dirt during rotation. The dirt housing can be opened.

[0012] A floor scrubber is known from US 7,921,497 B2, which is manually operable and includes a drive roller coupled to a scrubbing roller.

[0013] Other floor cleaning machines are known from WO 2015 / 086083 A1.

[0014] A hard floor cleaner is known from US 3,789,449.

[0015] DE 103 57 637A1 describes a self-propelled sweeper with a sweeping brush and an associated sludge collection chamber.

[0016] A household floor cleaner with a wiping roller is known from DE 10 2007 054 500 A1.

[0017] A floor cleaner having a housing, a hose assembly and a cleaning head is known from US 2006 / 0272120 A1.

[0018] A cleaning station for a cleaning machine is known from DE 10 2017 120 723 A1, wherein the cleaning station has a receiving chamber for a cleaning head of the cleaning machine.

[0019] A floor cleaning machine with a handle is known from WO 2005 / 087075 A1, wherein the handle is arranged on the base in a swingable manner.

[0020] CN 107007215 A discloses a ground cleaning robot.

[0021] DE 20 2018 104 772 U1 discloses a dirty water collection mechanism, a dirty water detection mechanism, and a cleaning device.

[0022] Cleaning machines are also known by AU 2017101723 A4, CN 206687671 U, DE 20 2016 105300U1, US 9,622,637 B1, CN 205359367 U, US 2017 / 0119225 A1, CN205181250U, CN 205181251 U, CN205181256 U, DE 20 2016 105 299U, WO 2017 / 059602 A1, WO 2017 / 059600 A1, WO 2017 / 059601 A1, WO2017 / 059603A1 or DE 20 2016 105 301 U1. Summary of the Invention

[0023] The objective of this invention is to provide a floor cleaning machine of the type described at the beginning, which has an optimized cleaning effect.

[0024] According to the present invention, in the floor cleaning machine described at the beginning, this task is accomplished by arranging at least one support element on the base of the cleaning head, which is spaced apart from at least one cleaning roller unit, wherein, during cleaning operation, the cleaning head is supported on the floor to be cleaned via at least one cleaning roller unit and at least one support element, and the dirty fluid tank device has a through recess corresponding to at least one support element, wherein when the dirty fluid tank device is placed on the cleaning head, at least one support element is guided through the recess.

[0025] During cleaning operation, the weight of the cleaning head along with the handle assembly is supported on the ground by at least one cleaning roller unit and at least one support element. Thus, the dirty fluid tank assembly can be held on the base in a simple manner, and in particular, floated on the base.

[0026] Despite the presence of at least one support element, the dirty fluid tank device can provide a large capacity through a through recess on the dirty fluid tank device that corresponds to at least one support element.

[0027] Advantageously, a placement surface for the cleaning head is provided via at least one cleaning roller unit and at least one support element, the placement surface having at least one of the following characteristics:

[0028] - The placement surface is a flat surface;

[0029] - The axis of rotation of at least one cleaning roller unit is parallel to the placement surface;

[0030] - The grip is hinged to the cleaning head in a manner that allows it to swing about a swing axis, and the swing axis is parallel to the placement surface;

[0031] - The removal direction for removing the dirty fluid canister from the cleaning head and the insertion direction for placing the dirty fluid canister into the cleaning head are both transverse to and, in particular, perpendicular to the placement surface;

[0032] -The dirty fluid tank can be removed from the cleaning head with the placement surface facing downwards;

[0033] - The base is spaced apart from the placement surface in the height direction.

[0034] This achieves optimized operability. The dirty fluid tank device can be easily removed from or placed on the base by removing it transversely to the placement surface. In particular, the locking of the dirty fluid tank device to the base can be easily released or established. Furthermore, the dirty fluid tank device can be moved in a structurally simple manner and, in particular, held floatingly on the base. A suspension support is specifically provided.

[0035] Advantageously, at least one support element includes a roller or slider. This allows the user to easily guide the cleaning head across the surface to be cleaned via the handle.

[0036] In one embodiment, at least one support element includes a strut connected to the base and extending away from the base into the space where the dirty fluid tank assembly is located. The strut can, to some extent, bridge the space between the base and the placement surface.

[0037] In particular, it has at least one of the following features:

[0038] - Rollers or sliders are mounted on the support;

[0039] - When the dirty fluid tank device is fixed on the base, the support is positioned in the corresponding through recess of the dirty fluid tank device.

[0040] This provides a dirty fluid tank device with a large capacity. Specifically, the through recess is open on both the upper and lower sides of the dirty fluid tank device, wherein when the dirty fluid tank device is fixed to the base, the upper side faces the base, and the lower side faces away from the upper side. Thus, the dirty fluid tank device can be easily fixed to and released from the base. At least one support element can be provided, securely arranged on the cleaning head (securely arranged on the base), to define the placement surface.

[0041] This can be configured such that the through recess is bounded by the vessel wall between the upper and lower sides of the dirty fluid tank device, wherein the vessel wall is either closed or the through recess is open to one side of the dirty fluid tank device. The dirty fluid tank device is constructed in a fluid-tight manner relative to the through recess. Thus, the "volume loss" of the dirty fluid tank device is minimized based on the through recess.

[0042] Here, the vessel wall is oriented transversely to, and especially perpendicularly to, the upper and / or lower sides of the dirty fluid tank assembly. This minimizes the structural cost of arranging at least one support element and the through recess. In an advantageous embodiment, at least one cleaning roller unit is mounted on a roller housing on a shaft having a first shaft portion, an intermediate portion, and a second shaft portion, wherein the intermediate portion is located between the first and second shaft portions, and the first roller portion of at least one cleaning roller unit is arranged on the first shaft portion, and the second roller portion of at least one cleaning roller unit is arranged on the second shaft portion, with an intermediate drive acting on the intermediate portion. Thus, the cleaning roller unit can extend all the way to the transverse edge of the cleaning head. This again enables cleaning near the edge. In principle, during cleaning, a strip is left on the surface to be cleaned at the intermediate portion. Cleaning on this strip can also be performed by driving over it in an offset manner.

[0043] Of particular advantage is that at least one support element is arranged aligned with the central portion about the longitudinal axis of the cleaning head. When cleaning the floor, the support element is guided on the uncleaned strips. Thus, at least one support element is not guided within the cleaned area.

[0044] A particularly advantageous feature is the inclusion of a foot pedal on the dirty fluid tank assembly, with at least one support element aligned with the longitudinal axis of the cleaning head when the assembly is secured to the cleaning head. The dirty fluid tank assembly can be easily released from the base by stepping on the foot pedal, particularly by applying pressure with the user's foot. Alignment with at least one support element prevents tilting moments and similar issues.

[0045] Advantageously, exactly one support element is provided. This keeps the structural cost very low. In particular, the reduction in volume is minimized due to at least one support element and the corresponding through-hole for the dirty fluid tank assembly.

[0046] When at least one support element is centrally positioned between the first and second lateral sides of the cleaning head, tilting torque and similar situations are avoided.

[0047] This solution enables a floor cleaning machine in which a handle assembly is supported by its weight on at least one cleaning roller unit. Consequently, based on the weight of the handle assembly used for the cleaning head, a high, and especially maximum, compressive pressure is achieved on the floor to be cleaned.

[0048] The correspondingly high squeezing pressure resulted in improved cleaning results. It also improved the removal of dirt from the surface to be cleaned.

[0049] Furthermore, the corresponding construction of the swing joint allows for a simple solution, ensuring that in each position of the swing joint, especially the cleaning head on which the dirty fluid tank is detachably arranged, the surface to be cleaned is in the same position relative to the area being cleaned. This also improves cleaning results.

[0050] More advantageously, the oscillating joint is constructed as an orbitalgelenk, having an orbital guide for the grip on the cleaning head. This allows for simple coaxiality between the oscillation axis and the rotation axis of the oscillating joint. In particular, this enables the cleaning roller unit to rotate on the ground due to the oscillation when the grip swings relative to the cleaning head, while the cleaning head, having at least one cleaning roller unit, is routinely placed on the surface to be cleaned.

[0051] In a structurally advantageous embodiment, the oscillating joint has a trajectory guide device mounted anti-rotationally on the cleaning head, and this trajectory guide device has a circular trajectory section centered on the oscillation axis. The oscillating joint also has a mating device mounted anti-rotationally on the grip device and supported on the trajectory guide device. Thus, a track-type joint can be constructed in a simple manner, wherein the oscillation axis coincides with the rotation axis of at least one cleaning roller unit. Furthermore, a large support area for the mating device is obtained on the trajectory guide device. This results in a mechanically stable oscillating joint with a correspondingly long service life.

[0052] Advantageously, at least one cleaning roller unit is arranged in the region at the front end of the cleaning head and has the following characteristics:

[0053] - A portion of the circular trajectory section is located behind at least one cleaning roller about the longitudinal axis of the cleaning head;

[0054] - A portion of the circular trajectory section is positioned above at least one cleaning roller unit relative to the height axis of the cleaning head.

[0055] This arrangement allows the circular track segment to partially surround at least one cleaning roller unit from both sides. This enables a simple implementation of a swing joint, particularly a track-type joint, whose swing axis coincides with the rotation axis of at least one cleaning roller unit.

[0056] Advantageously, the mating device is supported on the track guide device via at least three support points. This results in a mechanically stable oscillating hinge structure.

[0057] Advantageously, the oscillating joint is centrally positioned between the first lateral side of the cleaning head and the spaced-apart second lateral side. This results in a symmetrical construction and avoids tilting moments and similar issues.

[0058] More advantageously, when the handle oscillates about the swing axis, at least one cleaning roller unit also moves. Thus, when the cleaning head is routinely supported on the surface to be cleaned via at least one cleaning roller unit, the cleaning roller unit rolls on the surface. This movement is superimposed on the rotational movement of at least one cleaning roller unit about its axis of rotation.

[0059] A particularly advantageous feature is the inclusion of a foot pedal in the rear region of the cleaning head, with the rear end facing away from the front end and at least one cleaning roller unit arranged in the front region. The foot pedal allows the user to apply pressure to the cleaning head, and especially the dirty fluid tank, with their foot. This significantly improves the ability to detach the dirty fluid tank from the cleaning head. For example, the user no longer needs to manually remove the dirty fluid tank from the cleaning head or connect the cleaning head to the dirty fluid tank.

[0060] In an advantageous embodiment, the footplate is arranged aligned with the swing joint about the longitudinal axis of the cleaning head, and particularly centered between the first and second lateral sides of the cleaning head. This allows, for example, the placement of a tilting moment.

[0061] Advantageously, it has at least one of the following features:

[0062] - The foot pedal extends beyond the rear end of the cleaning head housing or base;

[0063] - The foot pedal is mounted on the dirty fluid tank device, which is detachably mounted on the cleaning head;

[0064] - The treadle tongue has an upturned lateral edge wall.

[0065] Because the extension extends beyond the rear, the user can easily apply pressure to the foot pedal from their user side. They can then stand on the foot pedal and simultaneously apply pressure to, for example, the grip mechanism.

[0066] When the foot pedal is placed on the dirty fluid tank device, the dirty fluid tank device can be easily released by applying force to the foot pedal. For example, by applying force to the foot pedal (when the cleaning head and dirty fluid tank device are upright on the ground), the dirty fluid tank device can be fixed to the ground to a certain extent, and the dirty fluid tank device can be released from the cleaning head by lifting the cleaning head.

[0067] By stepping on the upward-curving horizontal edge of the tongue, the user's foot is prevented from slipping. Sharp edges and similar issues are also avoided.

[0068] A particular advantage is that a free space is created on the cleaning head, allowing the grip device to move within this free space as it pivots about its swing axis, and especially, the foot pedal is positioned within or within this free space. This results in a large range of motion for the grip device on the cleaning head. Furthermore, this allows for a very small swing angle, at which the grip device is close to the surface to be cleaned. Consequently, better descent over furniture and the like is achieved.

[0069] In one embodiment, a drive motor is provided for the cleaning roller unit, and the drive motor is connected to the grip device in a manner that resists relative rotation due to its oscillation about a swing axis relative to the grip device. This results in a structurally simple implementation. When the grip device pivots, the drive motor also pivots together. This allows for a drive system having a drive motor and a cleaning roller unit (on the roller housing) without the need for a sliding coupler or similar device.

[0070] For the same reason, it is advantageous to provide a transmission device for transmitting torque from the drive motor to at least one cleaning roller unit, wherein the transmission device is connected to the grip device in a manner that resists relative rotation, taking into account the oscillation capability of the grip device about the oscillation axis. This allows the entire drive system, consisting of the drive motor and the transmission device, to pivot relative to the cleaning head via the pivoting of the grip device on the cleaning head, without the need for an additional coupler.

[0071] For the same reason, it is also advantageous to provide a roller housing on which at least one cleaning roller unit is mounted, wherein the roller housing is connected to the gripping device in a manner resistant to relative rotation, taking into account the swingability of the gripping device. The entire drive system, consisting of a drive unit, a transmission unit, and a drive motor, is connected to the gripping device in a manner resistant to relative rotation and can pivot with the gripping device. This results in the direct effect of the weight of the gripping device, including the drive motor and transmission unit, on the cleaning roller unit, in order to provide high, and especially maximum, compressive pressure of the cleaning roller unit on the surface to be cleaned.

[0072] In one embodiment, at least one cleaning roller unit is disposed on a roller receiving portion on a shaft having a first shaft portion, an intermediate portion, and a second shaft portion, wherein the intermediate portion is located between the first shaft portion and the second shaft portion, and the first roller portion of at least one cleaning roller unit is disposed on the first shaft portion, and the second roller portion of at least one cleaning roller unit is disposed on the second shaft portion, and an intermediate drive is provided that acts on the intermediate portion, and the intermediate portion is arranged aligned with the swing joint about the longitudinal axis of the cleaning head. Through this intermediate drive, the first roller portion and the second roller portion can extend all the way to the lateral side end of the cleaning head. This allows for cleaning close to the edge. The alignment of the swing joint with the intermediate portion avoids tilting torque and similar issues.

[0073] In one embodiment, the grip device has a first portion and a second portion, wherein the first portion is hinged to the cleaning head, and the second portion is rotatable relative to the first portion about a rotation axis, wherein, in particular, the rotation axis is oriented laterally and especially perpendicularly to the swing axis of the oscillating joint. This provides easy operability. The added rotatability makes it easier for the user to perform the cleaning process in corners or similar locations. Due to the rotatability about the rotation axis, the user can position the cleaning head relative to themselves in different ways. The rotation axis may be parallel to, for example, the longitudinal axis of the first portion, or, for example, the longitudinal axis of the second portion.

[0074] More particularly advantageous is the provision of a locking device, by which the rotatability about the axis of rotation can be locked, which in particular has at least one of the following features:

[0075] - In the stationary position of the grip device relative to the cleaning head, the locking device functions and is in particular in the locked position;

[0076] -In addition to the fixed stationary position, the rotatability is released by the locking device;

[0077] - When the parking position is reached, the locking device automatically enters the locking position;

[0078] - When the parking position is released, the locking device automatically moves out of its locked position.

[0079] This allows for automatic operation, particularly by blocking rotation during the parking position. This results in a "stable" parking position. It is also advantageous that the machine automatically reaches a locked position upon entering the parking position and an unlocked position upon leaving it. This stable parking position is for the floor cleaning machine's resting position, especially when not in operation. Rotation is possible outside this resting position to enable a wide range of cleaning possibilities.

[0080] In one embodiment, the locking device includes a spring-supported movable slider movably supported on the first portion and causing form-locking with the second portion in the locked position, and particularly having at least one of the following features:

[0081] - The slider has a protrusion that supports the cleaning head in the locked position and holds the slider in the locked position or guides it into the locked position;

[0082] - The slider has overload protection;

[0083] - The slider has at least one first part and a second part, wherein the second part acts on the second part of the gripping device, and wherein the second part is spring-loaded and arranged on the first part in a movable manner.

[0084] The movable slider allows for a simple locking mechanism. The spring support allows for a simple and automatic locking position upon reaching the stopping position. Specifically, the spring support ensures that, outside of the stopping position, the slider remains in a position where it is not in form-locked with the second part. Upon reaching the stopping position, form-locking is achieved, in particular, by supporting the slider correspondingly on the cleaning head, causing the slider to move against the force of the spring mechanism.

[0085] In a structurally advantageous embodiment, the slider specifically protrudes, wherein the protrusion enables action on the cleaning head, particularly during parking, to push the slider into or hold it in a shape-locking engagement with the second part of the grip device.

[0086] A particularly advantageous feature is the inclusion of overload protection for the locking mechanism. This reduces or prevents damage to the floor cleaning machine under high loads, especially during stationary positioning. It also increases the likelihood of obstacle avoidance, further minimizing the risk of damage.

[0087] In particular, the slider is constructed in multiple parts, so that when the slider as a whole cannot move during parking, the parts of the slider can move relative to each other to provide overload protection and reduce the risk of damage. This is especially achieved through the spring support of the second part to the first part, so that, except in overload conditions, the slider can move as a whole consisting of the first and second parts to reach or release the locked position. Within the locked position, the multi-part construction allows the slider itself to avoid large force loads.

[0088] In one embodiment, the grip device has a first region having a first longitudinal axis and a second region having a second longitudinal axis, wherein the first and second longitudinal axes are oriented at an obtuse angle to each other, particularly between 120° and 170°. This results in optimized articulation of the grip device on the cleaning head, especially in the case of a track-type hinge. A high range of swing angles is achieved.

[0089] In particular, it is provided with at least one of the following features:

[0090] -The second area is placed on top of the first area;

[0091] -The first region is or includes the distal region of the grip device;

[0092] - The grip assembly is hinged to the cleaning head via the first area;

[0093] -A swaying hinge engagement device is arranged in the first area;

[0094] - A drive motor for at least one cleaning roller unit is arranged in the first area;

[0095] -The first region has a shell;

[0096] -A battery holder is arranged in the first area;

[0097] -A removable container for cleaning fluid is arranged in the first area;

[0098] The above features yielded a structurally simple structure.

[0099] For the same reason, it is advantageous to have at least one of the following features:

[0100] -The second region is or includes the proximal region of the grip device;

[0101] -A handle is arranged in the second area;

[0102] -A movable tank device for cleaning fluid is arranged in the second area;

[0103] - A battery holder is arranged in the second area;

[0104] - An operation panel is arranged on the second area or at the handle located on the second area;

[0105] - The second region has a straight extension along the second longitudinal axis.

[0106] This also contributes to the ease of operation of the floor cleaning machine.

[0107] More particularly advantageously, the grip device has a free range of swing angles relative to the cleaning head via a pivot joint, the range of swing angles having a swing angle between the longitudinal axis of the grip device and the placement surface of the cleaning head on the ground to be cleaned, wherein the swing angle is within a range between a lower limit and an upper limit, and particularly has at least one of the following characteristics:

[0108] - The lower limit is 0° or greater than 0°;

[0109] - The lower limit is less than 50°, especially less than 40°, especially less than 30°, and preferably less than 20°;

[0110] - The upper limit is between 80° and 120°, especially around 90°;

[0111] - At the upper limit, the grip device has a stationary position relative to the cleaning head.

[0112] A correspondingly high swing angle was achieved. Good mobility, for example, under furniture, was obtained through a smaller lower limit. A stable posture of the handle relative to the cleaning head can be achieved through a stationary positioning mechanism, and the overall stable posture of the floor cleaner can be achieved for parking or, for example, for the cleaning process of at least one cleaning roller unit.

[0113] Advantageously, a locking device is provided that locks the handle assembly and cleaning head at their upper limit, thus preventing the handle assembly from swinging relative to the cleaning head. This locks the handle assembly and cleaning head in place, achieving storage and positioning for the floor cleaning machine. It also allows for a simple and automated cleaning process for at least one cleaning roller unit or other parts of the floor cleaning machine at the corresponding ground station. This prevents the handle assembly from tipping over.

[0114] Advantageously, when the handle is at its upper limit and locked with the cleaning head, and when the cleaning head is normally placed on the surface to be cleaned, further pivoting of the handle, with an increased swing angle, causes the cleaning head to pivot toward the surface without further user intervention. This allows for easy release of the dirty fluid canister from the cleaning head, especially when the canister is equipped with a foot pedal. For the corresponding removal of the dirty fluid canister, the user does not need to grasp it. Furthermore, the user can easily stabilize the dirty fluid canister on the surface to be cleaned (by applying force, particularly by stepping on the foot pedal). This minimizes the movement of the dirty fluid canister when detaching from the cleaning head and minimizes sloshing of the liquid within the canister.

[0115] In one embodiment, the locking device includes at least one spring-loaded pin and an associated recess for the pin, wherein (i) at least one pin is arranged anti-rotatably on the grip and the associated recess is arranged anti-rotatably on the cleaning head, or (ii) at least one pin is arranged anti-rotatably on the cleaning head and the associated recess is arranged anti-rotatably on the grip. The locking device can be implemented in a structurally simple manner using a pin-recessed opening. Locking can be easily established and deactivated by the user. In particular, locking can be automatically established by reaching a certain swing position (especially the upper limit). Furthermore, the locked position (blocking position) can be easily released by applying force to the grip.

[0116] Advantageously, it has at least one of the following features:

[0117] - Outside the sinking opening, a first inclined plane is provided for the sinking opening. When the swing angle increases, the first inclined plane guides the provided pin into the sinking opening, wherein the first inclined plane causes the pin to move against the force of the spring loading.

[0118] -At least one pin has a first contact surface that matches the first inclined plane;

[0119] - The sinking opening is limited by a vessel wall having a second inclined plane, and when the swing angle is reduced, the associated pin moves out of the sinking opening through the vessel wall, wherein the second inclined plane causes the pin to move against the force of the spring loading.

[0120] - At least one pin has a second mating surface that matches the second inclined plane.

[0121] In particular, the pin is arranged in a movable manner and is spring-loaded. Guided by a first inclined plane, the pin is positioned against the spring force, allowing it to sink into the recessed opening. Once the recessed opening is reached, the pin is pressed into it by the spring load. This locking process can be performed solely by a swinging motion on the grip, and thus can be automated. By swinging, particularly towards the upper limit of the swing angle range, the corresponding blocking position can be directly achieved as the pin sinks into the recessed opening.

[0122] By using a first contact surface that matches the first inclined plane, the result is that the corresponding blocking position can be easily and automatically reached.

[0123] The second inclined plane allows adjustment of the appropriate force required to guide the pin out of the recessed opening. Specifically, this force can be applied by applying torque to the grip. This enables automatic release of the blocking position. The user can then simply pivot the grip towards the cleaning head without further intervention to release the lock.

[0124] The force required to reach the blocking position (pin sinks into the recess) or release the blocking position (pin is removed from the recess) can also be easily adjusted using the first and second inclined planes. In particular, this specification is set such that the force required to release the blocking position is greater than the force required to reach the blocking position.

[0125] Advantageously, the cleaning head is provided with a removable dirty fluid tank device, which has at least one of the following features:

[0126] - A foot pedal is arranged on the dirty fluid tank device;

[0127] - At least one scraping element is arranged on the cleaning head, which acts on at least one cleaning roller unit and is used to scrape off the dirty fluid from at least one cleaning roller unit;

[0128] - At least one scraping element is submerged in the working material of at least one cleaning roller unit;

[0129] - Dirty fluid is directly transferred from at least one cleaning roller unit to the dirty fluid tank device without the need to operate a suction device.

[0130] The presence of a foot pedal on the dirty fluid tank unit allows for easy detachment of the dirty fluid tank from the cleaning head. Furthermore, it reduces the risk of the floor cleaning machine tipping over when parked.

[0131] Dirty fluid can be easily removed by at least one scraping element, and especially coupled into the dirty fluid tank device without suction.

[0132] Furthermore, it is advantageous to have at least one of the following features:

[0133] - The handle is designed for a standing user on the surface to be cleaned, wherein the cleaning head is placed on the surface via a placement surface, and the floor cleaning function is guided on the surface via the handle.

[0134] - At least one cleaning roller unit is driven by a motor;

[0135] - The cleaning head has a housing, in which at least one cleaning roller unit is arranged at least partially;

[0136] - At least one cleaning roller unit utilizes its outer end located on the first lateral side and the second lateral side of the cleaning head, respectively.

[0137] This results in ease of operation and optimal cleaning results, especially on hard surfaces. Standing users can perform the cleaning process. Cleanability is achieved even near the edges of the floor surface.

[0138] Furthermore, it is advantageous to set at least one of the following features:

[0139] - At least one scraping element for at least one cleaning roller unit is arranged on the cleaning head;

[0140] - At least one comb element is arranged on the cleaning head, the comb element acting on at least one cleaning roller unit;

[0141] - The cleaning head is equipped with (iii) at least one cleaning element that conveys the cleaned material to at least one cleaning roller unit, wherein the at least one cleaning element is particularly arranged on the dirty fluid tank device.

[0142] In this embodiment, any one of the elements (i), (ii), (iii) of at least one cleaning roller unit, or any combination of these elements, has the same positioning independent of the swing positioning of the grip device relative to the cleaning head.

[0143] This can be achieved, in particular, by spring loading of at least one scraping element and at least one combing element. Regarding the cleaning element, it can be implemented in a simple manner when the cleaning element is arranged on the dirty fluid tank assembly and the dirty fluid tank assembly is positioned on the cleaning head in a movable, and especially floating, manner.

[0144] Optimized cleaning results were achieved. Even when the diameter of at least one cleaning roller unit changes, for example due to wear or manufacturing tolerances, the cleaning results do not deteriorate.

[0145] Advantageously, the cleaning head has a placement surface for the floor to be cleaned, which is in particular a flat surface, and the cleaning head is equipped with a horizontal plane parallel to the placement surface. During normal operation of the floor cleaner, the horizontal plane of the cleaning head is always in the same position relative to the placement surface, regardless of the swing positioning of the handle relative to the cleaning head.

[0146] Therefore, the same good cleaning results are always obtained regardless of the swing positioning of the grip device.

[0147] Furthermore, it is advantageous to set at least one of the following operating modes:

[0148] - Dry cleaning operation mode, in which cleaning fluid is not applied to the floor to be cleaned or at least one cleaning roller unit;

[0149] - Wet wiping operation mode, in which cleaning fluid is applied to the floor to be cleaned and / or at least one cleaning roller unit;

[0150] - Sweeping and wet wiping operation modes, wherein coarse dirt is conveyed, in particular, via a sweeping element to at least one cleaning roller unit and then to a dirty fluid tank device via at least one cleaning roller unit, and the dirty fluid is scraped off from at least one cleaning roller unit by at least one scraping element and then transferred from there to the dirty fluid tank device.

[0151] Therefore, optimized cleaning results can be achieved. In particular, the possibility of dry sweeping operation mode, wet wiping operation mode, and combinations of sweeping and wet wiping operation modes can be realized on a single device and can be adjusted accordingly by the user. If necessary, the matching of the respective operation modes can be performed by replacing at least one cleaning roller unit. Attached Figure Description

[0152] The following description of preferred embodiments, taken in conjunction with the accompanying drawings, is used to elaborate the invention in detail.

[0153] in:

[0154] Figure 1 A side view showing an embodiment of a surface cleaning machine (floor cleaner) standing on a floor to be cleaned;

[0155] Figure 2 Showing according to Figure 1 A perspective view of a floor cleaning machine;

[0156] Figure 3 Shown in cross-section according to Figure 1 A partial schematic diagram of the cleaning head of a floor cleaning machine;

[0157] Figure 4 A partial perspective view of the cleaning head area of ​​an embodiment of the floor cleaning machine according to the present invention is shown;

[0158] Figure 5 Showing according to Figure 4 Another perspective view of the cleaning head;

[0159] Figure 6 Showing according to Figure 4 The cleaning head has a removable dirty fluid tank device;

[0160] Figure 7 Showing according to Figure 4 A cross-sectional view of the cleaning head;

[0161] Figure 8 Show along according to Figure 7 Sectional view of line 8-8;

[0162] Figure 9 Showing with Figure 5 The same view shows the locking or snapping parts for the dirty fluid tank assembly and cleaning head, as well as for the handle assembly and cleaning head;

[0163] Figure 10 Showing according to Figure 9 A side sectional view of the area where the grip and cleaning head are locked, with the cleaning head out of the locked position;

[0164] Figure 11 Showing according to Figure 9 A cross-sectional view of the locking part of the dirty fluid tank assembly and the cleaning head, wherein the dirty fluid tank assembly is fixed to the cleaning head;

[0165] Figure 12 Showing with Figure 10 The same view, in which the grip is locked to the cleaning head;

[0166] Figure 13 Showing with Figure 11 The same view, in which the dirty fluid tank assembly has been removed (loosened from its locking position);

[0167] Figure 14 A variant of an embodiment with a pin having a tapered tip is shown;

[0168] Figure 15 A view of the cleaning head in the locked position is shown, allowing the handle to rotate relative to the cleaning head, with the cover removed.

[0169] Figure 16 Showing according to Figure 15 An enlarged view of the locking device;

[0170] Figure 17 Showing with Figure 15 The same view, showing the lever assembly in a locked position where it can rotate relative to the cleaning head;

[0171] Figure 18 Shown in accordance with Figure 17 Enlarged view of the locking device in its position;

[0172] Figure 19 An embodiment of a floor cleaning machine according to the present invention is shown, which has different positions of the handle device relative to the cleaning head, wherein:

[0173] exist Figure 19 (a) shows a specific swing position (working position) of the grip device relative to the cleaning head;

[0174] exist Figure 19 (b) shows the stopping position of the grip device relative to the cleaning head;

[0175] exist Figure 19 (c) indicates the movement used to loosen the dirty fluid tank assembly from the cleaning head;

[0176] exist Figure 19 (d) shows the cleaning head being lifted from the dirty fluid tank device for removing the dirty fluid tank device;

[0177] exist Figure 19 (e) schematically shows a cleaning head placed on the dirty fluid tank assembly for securing the dirty fluid tank assembly;

[0178] Figure 20 A cross-sectional view of the cleaning head within the cleaning roller unit area is shown;

[0179] Figure 21 A cross-sectional view of the cleaning roller unit in region A according to Figure 25 is shown;

[0180] Figure 22 The diagram shows the relationship between region B and region B according to Figure 25. Figure 21 Similar sectional views;

[0181] Figure 23 A partial diagram is shown based on Figure 4 A cross-sectional view of a floor cleaning machine, in which the swing positioning ratio of the handle device is... Figure 4 The swing positioning is lower;

[0182] Figure 24 Shown in accordance with Figure 4 Bottom view of the cleaning head in a floor cleaning machine;

[0183] Figure 25(a) schematically illustrates the orientation of an embodiment of an arched scraping element on a cleaning roller unit having first and second roller sections;

[0184] Figure 25(b) schematically illustrates the orientation of an embodiment of an arched scraping element on a roller section;

[0185] Figure 26 The schematic diagram illustrates the orientation of another embodiment of an arched scraping element on a cleaning roller unit or on one roller section having first and second roller sections;

[0186] Figure 27 The schematic diagram illustrates the orientation of another embodiment of an arched scraping element on a cleaning roller unit or a single roller section having first and second roller sections.

[0187] Figure 28 Showing according to Figure 20 A perspective view of an embodiment of the scraping element and the comb;

[0188] Figure 29 Shown in accordance with Figure 28 In the X direction Figure 28 The combination; and

[0189] Figure 30 Shown in Figure 28 According to the Y direction Figure 28 The bottom view of the combination. Detailed Implementation

[0190] An embodiment of the surface cleaning machine according to the present invention is a floor cleaning machine 10. The basic structure and basic working method of the floor cleaning machine 10 are combined... Figures 1 to 3 Let me elaborate.

[0191] The floor cleaning machine 10 is especially effective for cleaning hard floors.

[0192] The floor cleaning machine 10 includes a cleaning head 12. In embodiments of the floor cleaning machine, the cleaning head 12 is a floor head.

[0193] For the conventional cleaning operation mode, the cleaning head 12 is placed on the ground 16 to be cleaned using the placement surface 14.

[0194] The placement surface 14 is, in particular, a flat surface. At least one cleaning roller unit 18 is arranged on the cleaning head 12. In the illustrated embodiment, exactly one cleaning roller unit 18 is provided.

[0195] The cleaning roller unit 18 may include a one-piece cleaning roller or a multi-piece cleaning roller, which will be described in more detail below.

[0196] The cleaning head 12 has a front end 20 and a rear end 22 opposite to the front end, and the longitudinal axis 24 of the cleaning head 12 extends between the front end 20 and the rear end 22.

[0197] The cleaning head 12 has a first transverse side 26 and an opposite second transverse side 28. The spacing between the first transverse side 26 and the second transverse side 28 is transverse to and, in particular, perpendicular to the longitudinal axis 24.

[0198] The cleaning roller unit 18 is arranged in the area of ​​the front end 20 of the cleaning head 12. During normal operation of the floor cleaner 10, the user stands on the floor 16 to be cleaned behind the rear end 22 of the cleaning head 12.

[0199] Placement surface 14 is connected to cleaning roller unit 18 and at least one placement element (in Figures 1 to 3 (Not shown in the image). The cleaning head 12, which is further the floor cleaner 10, is supported on the floor 16 to be cleaned via the cleaning roller unit 18 and at least one placement element.

[0200] The cleaning head 12 has a base 30. The base 30 is the base of the cleaning head 12.

[0201] A removable dirty fluid reservoir 32 is disposed on the cleaning head 12. The dirty fluid reservoir 32 contains dirty fluid. Here, dirty fluid is understood as a flowable fluid, which can be wet or dry. For example, dirty fluid may include cleaning liquid containing dirt particles or only dust particles.

[0202] In principle, the dirty fluid tank device 32 may include multiple separate parts that can be individually fixed to the base 30 and removed from the base.

[0203] In a preferred embodiment, the dirty fluid tank device 32 includes a unit having one or more separate chambers for dirty fluid.

[0204] A foot pedal 34 is provided on the dirty fluid tank unit 32, extending rearward. This foot pedal is used to facilitate the removal of the dirty fluid tank unit 32 from the cleaning head 12, as will be explained in more detail below.

[0205] A handle 36 is hinged to the cleaning head 12 in a swingable manner via a pivot joint. The handle 36 is configured such that a standing user can hold the floor cleaner 10 and guide it on the floor 16 to be cleaned.

[0206] A handle 38 is arranged at the proximal end of the grip assembly 36. In the illustrated embodiment, the handle 38 is configured as a closed bow-shaped handle. Other embodiments, such as those configured as a non-closed bow-shaped handle, are also possible.

[0207] In particular, operating elements, such as on / off switches and other operating elements, such as those for control, are arranged on the handle 38 or on the grip device 36 near the handle 38.

[0208] At the distal end, the grip device 36 is hinged to the base 30 via a swing joint.

[0209] The swing axis 40 of the swing joint hinged to the grip device 36 and the cleaning head 12 Figure 2 It is parallel to the placement surface 14. The swing axis 40 is transverse to and, in particular, perpendicular to the longitudinal axis 24.

[0210] The grip assembly 36 has a (second) longitudinal axis 42 along which it extends to the handle 38. The swing axis 40 is transverse to and, in particular, perpendicular to the second longitudinal axis 42 of the grip assembly 36.

[0211] It can be configured that the grip device 36 has additional oscillation relative to the mobility of the cleaning head 12, wherein the corresponding rotation axis 41 is oriented transversely to the oscillation axis 40. This oscillation is... Figure 1 The rotatability 44 is indicated by an arrow with reference numeral 44. The corresponding axis of rotation 41 of this rotatability 44 is, for example, parallel or coaxial with the first longitudinal axis 80 of the grip assembly 36 (see below). In particular, this rotatability 44 can be formed by a corresponding construction of the grip assembly 36 having a first portion 278 and a second portion 280 rotatable relative to the first portion 278. This will be discussed in particular below. Figures 15 to 18 To elaborate further.

[0212] The floor cleaning machine 10 includes a drive motor (in) Figures 1 to 3(Not shown in the image), the cleaning roller unit 18 is rotatably driven about the rotation axis 46 by the drive motor. Even when the cleaning roller unit includes multiple cleaning rollers, the cleaning roller unit 18 has a single rotation axis 46. The rotation axis 46 is parallel to the placement surface 14 and is perpendicular to the longitudinal axis 24. The rotation axis is parallel to the swing axis 40.

[0213] In one embodiment, which will be described in more detail below, the swing axis 40 and the rotation axis 46 of the grip device 36 on the cleaning head 12 are coaxial with each other.

[0214] The drive motor is arranged on the cleaning head 12, or on the handle device 36, or in the transition area between the handle device 36 and the cleaning head 12. The drive motor acts on the cleaning roller unit 18 and provides the corresponding torque for the rotation drive of the cleaning roller unit.

[0215] The ground cleaning machine 10 can be powered by the grid or by batteries.

[0216] In one embodiment, a battery holder 48 is provided, which holds one or more batteries, particularly rechargeable batteries. The batteries can be securely mounted on the floor cleaner 10, or can be removed from the floor cleaner.

[0217] According to Figures 1 to 3 In the illustrated embodiment, the battery holder 48 is arranged on the grip 36. However, in principle, it is also possible to arrange it on the cleaning head 12.

[0218] The floor cleaning machine 10 is specifically configured for wet cleaning of hard floors. A tank device 50 for cleaning fluid is provided. The cleaning fluid is primarily fresh water, with detergent additives if necessary. The cleaning fluid from the tank device 50 can directly wet the cleaning roller unit 18 and / or wet the floor 16 to be cleaned. This allows for improved removal of dirt, and the corresponding dirty fluid is contained in the cleaning roller unit 18 and delivered to the dirty fluid tank device 32.

[0219] In the illustrated embodiment, the tank assembly 50 is arranged on the handle assembly 36. A corresponding delivery device for cleaning fluid is provided, which extends from the tank assembly 50 to the cleaning head 12 so that the cleaning roller unit 18 and / or the floor 16 to be cleaned can be wetted with cleaning fluid accordingly.

[0220] Figure 3 The basic functional structure of the cleaning head 12 is shown, and combined with Figure 3 The basic working principle is explained. In the cleaning operation mode, the cleaning head 12 is placed on the ground 16 to be cleaned using its placement surface 14. Figure 3(At least one additional placement element is not shown). The cleaning roller unit 18 acts on the floor to be cleaned and rotates in the rotation direction 52.

[0221] A dirty fluid tank device 32 is mounted on the base 30 of the cleaning head 12.

[0222] A passage device 54 with an inlet opening 56 is arranged on the cleaning head 12. This inlet opening 56 is in effective fluid connection with the dirty fluid tank device 32, or is itself an inlet opening on the dirty fluid tank device 32. When the cleaning roller unit 18 rotates, the cleaning roller unit rotates past the inlet opening 56.

[0223] The dirty fluid tank device 32 has a bottom 58. During normal operation of the floor cleaner 10, this bottom 58 faces the floor 16 to be cleaned. A container wall 60 is disposed on the bottom 58 facing the cleaning roller unit 18, extending to the inlet opening 56. The container wall 60 matches the cylindrical shape of the corresponding cleaning roller of the cleaning roller unit 18.

[0224] The cleaning head 12 has a cleaning element 62 for conveying coarse debris to the cleaning roller unit 18. This coarse debris... Figure 3 Double arrows 64 indicate this. Coarse dirt supplied to the cleaning roller unit 18 via the cleaning element 62 can be carried by the cleaning roller unit 18 and thrown into the dirty fluid tank device 32 via the inlet opening 56.

[0225] The cleaning element 62 is arranged on the base 30, or as follows: Figure 3 The arrangement shown is on the dirty fluid tank device 32.

[0226] During the operation of the floor cleaning machine 10, the cleaning roller unit 18 is wetted with cleaning fluid via a delivery device 66 for the cleaning fluid. This wetting... Figure 3 The reference numeral 68 is indicated by a wavy arrow.

[0227] The wetting is placed after the inlet opening 56 relative to the rotation direction 52. The area of ​​the cleaning roller unit 18 placed on the ground 16 to be cleaned then passes by the inlet opening 56 first, and then by the corresponding area with wetting 68, as it rotates in the rotation direction 52.

[0228] At least one scraping element 70 is provided, which is arranged on the base 30 and positioned between the inlet opening 56 and the area of ​​wetting 68.

[0229] Specifically, the scraping element 70 is positioned on the base 30 in a movable manner. In the illustrated embodiment, the scraping element 70 is mounted on a retainer 72, which is hinged to the base 30 in a pivotable manner. The retainer 72 is spring-loaded ( Figure 3 (Not shown in the image). A spring load presses the scraping element 70 against the cleaning roller unit 18.

[0230] The cleaning roller unit 18 has a liner with respect to its cleaning roller, the liner being arranged on a corresponding liner holder. For example, the liner is a textile material. However, it can also be a brush liner in principle.

[0231] The scraping element 70 is arranged to contact the lining surface, and preferably is recessed into the lining surface. A corresponding spring load on the movable retainer 72 ensures pressing or pushing in.

[0232] The scraping element 70 forms the inlet wall of the inlet device 54 for the inlet opening 56. In particular, the scraping element 70 separates the area of ​​the wetted 68 from the inlet opening 56.

[0233] The scraping element 70 acts on the cleaning roller unit 18 and the liner in such a way that it separates the dirty fluid from the corresponding cleaning roller (and especially the wet dirty fluid) and conveys it to the dirty fluid tank device 32 via the inlet opening 56.

[0234] This is Figure 3 The arrow is indicated by reference numeral 74 in the figure.

[0235] The dirty fluid 74 removed by the scraping element 70 may also contain coarse dirt particles that were not directly conveyed to the dirty fluid tank device 32 via the inlet opening 56.

[0236] Based on Figure 3 The floor cleaning machine 10 has a sweeping function that removes coarse dirt (which is also dry) from the floor 16 to be cleaned. The floor cleaning machine also has a wiping function that wets the floor 16 via a wetting 68, allowing the wet dirty fluid to be removed via a scraping element 70 and transferred to a dirty fluid tank 32.

[0237] The floor cleaning machine also has a combined operation mode, in which it can operate simultaneously (such as...). Figure 3 As indicated in the document, coarse dirt is collected from the surface 16 to be cleaned and a wet wiping process is performed via the cleaning roller unit 18.

[0238] The cleaning roller unit 18 is positioned on the cleaning head 12 in a replaceable manner. This allows the cleaning roller unit 18 or the cleaning roller itself to be cleaned in a simple way, for example. This makes it possible to match specific cleaning processes. For example, when the cleaning roller of the cleaning roller unit 18 has a textile lining, such as a microfiber lining, wet cleaning and sweeping cleaning can be performed simultaneously. However, it is also possible, for example, to use a cleaning roller with a brush lining to perform a purely sweeping process. (In particular, during a purely sweeping process, wetting of the cleaning roller unit 18 or the surface 16 to be cleaned is turned off).

[0239] In particular, the dirty fluid tank device 32 is arranged in a floating manner relative to the base 30, with the cleaning element 62 fixed thereon, so that, for example, the cleaning element 62 can be positioned in the same position relative to the cleaning roller unit 18 regardless of the liner length of the cleaning roller unit 18.

[0240] Combination Figure 3 The basic operating mode of the floor cleaning machine 10 described is also possible for cleaning heads 12 without the handle device 36, and especially for self-propelled and self-steering cleaning machines ("cleaning robots"). In such self-propelled and self-steering floor cleaning machines, the battery holder 48 and the tank device 50 for cleaning fluid are specifically arranged inside the cleaning head 12 itself.

[0241] In the floor cleaning machine 10, dirty fluid is conveyed via the cleaning roller unit 18 to the dirty fluid tank device 32 without a suction unit. The dirty fluid tank device 32 can be removed from the cleaning head 12 for emptying.

[0242] In principle, it is also possible to remove the dirty fluid located in the dirty fluid tank device 32. For this purpose, for example, a corresponding suction unit and a separate dirty fluid tank are arranged on the handle device 36.

[0243] The following will combine Figures 4 to 21 Describe another aspect or advantageous design of the floor cleaning machine 10.

[0244] In one embodiment, the grip 36 has a first region 76 and a second region 78. The first region 76 is angled relative to the second region 78. The first region 76 is the distal region, while the handle 38 is mounted on the second region 78 and is therefore the proximal region.

[0245] In particular, an operation panel with multiple operating elements is arranged on the handle 38 or the second area 78.

[0246] exist Figure 1 and Figure 2In the embodiment shown, the tank device 50 for the cleaning fluid is arranged on the second region 78.

[0247] In particular, the control panel includes a switch that allows switching between using cleaning fluid from the cleaning fluid reservoir 50 to wet the cleaning roller unit 18 and / or the floor 16 to be cleaned. This enables the user to select between a dry sweeping operation mode and a wet wiping operation mode.

[0248] The first region 76 is along the first longitudinal axis 80 (see also...) Figure 1 The first region 76 extends along the first longitudinal axis 42, while the second region 78 extends along the second longitudinal axis 42. The first region 76 and the second region 78 form an obtuse angle 82 with each other. Figure 1 The obtuse angle is between 120° and 170°.

[0249] In one specific embodiment, the obtuse angle 82 is approximately 145°.

[0250] The first region 76 and the second region 78 are connected to each other.

[0251] The grip device 36 is hinged to the cleaning head 12 via the first region 76 and here to the base 30 via the swing joint 84. As described above, the swing axis 40 of the swing joint 84 coincides with the rotation axis 46 of the cleaning roller unit 18 when it rotates.

[0252] The oscillating hinge 84 is configured as a track-type hinge. It includes a track guide 86, which is mounted anti-rotationally on the cleaning head 12 and hereon on the base 30. The track guide 86 includes a circular track section 88. The center of the circular track section 88 is located on the oscillation axis 40 / rotation axis 46.

[0253] A mating device 90 is connected to the first region 76 in a rotatable manner and is supported on the trajectory guide device 86.

[0254] The mating device 90 is guided in a sliding manner on the circular track section 88 of the track guiding device 86; the mating device 90 is guided in a track-like manner on the circular track section 88 of the track guiding device 86.

[0255] Here, at least three support parts for guiding the mating device 90 are provided on the trajectory guidance device 86.

[0256] The circular trajectory segment 88 is partially positioned behind the cleaning roller unit 18 about the longitudinal axis 24 of the cleaning head 12. About the height axis 92, which is perpendicular to the longitudinal axis 24 and perpendicular to the placement surface 14, a portion of the circular trajectory segment 88 is positioned above the cleaning roller unit 18.

[0257] The circular trajectory segment 88 is, for example, at least approximately, constructed as a quarter-circle segment, which to some extent encloses the cleaning roller unit 18.

[0258] The oscillating joint is centrally positioned on the base 30 between the first lateral side 26 and the second lateral side 28. It is arranged particularly symmetrically on the cleaning head 12. The oscillating joint is located on the central plane 94 (see...). Figure 2 The central plane is located centered between the first lateral side 26 and the second lateral side 28, and is oriented perpendicular to the rotation axis 46 or the swing axis 40.

[0259] The central plane 94 is also oriented perpendicular to the placement surface 14.

[0260] A drive motor 98, specifically an electric motor, is provided to drive the cleaning roller unit 18 in a rotational motion about a rotation axis 46 in a rotational direction 52. The drive motor is connected to the grip 36 in a rotationally resistant manner, so that when the grip 36 swings, the drive motor also pivots about the swing axis 40.

[0261] In principle, it is possible that the drive motor 98 is positioned in the cleaning head 12, but still has the aforementioned pivotability.

[0262] In one embodiment (see) Figures 4 to 6 The drive motor 98 is positioned on the grip 36, and specifically on the first region 76.

[0263] In particular, the first region 76 of the grip device 36 has a housing 100 that accommodates the drive motor 98.

[0264] In a variant of one embodiment, the battery holder 48' is disposed on the first region 76 or at the transition between the first region 76 and the second region 78. Figure 1 and Figure 2 In the embodiment shown, the battery holder 48 is arranged on the second region 78.

[0265] A free space 102 is formed on the cleaning head 12 and here on the base 30 (see...) Figure 5 The free space 102 is centrally located between the first lateral side 26 and the second lateral side 28, and is situated on the central plane 94. This free space 102 forms a swing space in which the grip device 36 can move, and thus, in particular, the first region 76 can move within the free space 102.

[0266] Free space 102 opens to the rear 22.

[0267] The housing 100, which has a drive motor 98, can move in the free space 102.

[0268] The free space 102 provides a large swing angle range in which the grip device 36 can pivot about the swing axis 40 relative to the base 30.

[0269] The floor cleaning machine 10 has a transmission device 104 ( Figure 7 The transmission device is used to transmit torque from the drive motor 98, which is positioned spaced apart from the cleaning roller unit 18, to the cleaning roller unit 18. In one embodiment, the transmission device 104 further includes a speed reducer, which is used to reduce the rotational speed so that the rotational speed of the cleaning roller unit 18 about the rotation axis 46 is lower than the drive speed of the drive motor 98.

[0270] The transmission device 104 includes, for example, a belt drive and a speed reduction drive.

[0271] The cleaning roller unit 18 is or includes a roller housing 106. The roller housing 106 further includes a shaft 108, which is torque-connected to the transmission device 104. Under the corresponding drive of the drive motor 98, the shaft 108 rotates about the rotation axis 46.

[0272] In one embodiment, shaft 108 (see...) Figure 6 The shaft 108 includes a first shaft portion 110, a second shaft portion 112, and an intermediate portion 114 connected to the first shaft portion 110 and the second shaft portion 112. The shaft 108 forms a shaft with a unique axis of rotation (i.e., axis of rotation 46) using the first shaft portion 110, the second shaft portion 112 and the intermediate portion 114.

[0273] The middle portion 114 is centrally located between the first lateral side 26 and the second lateral side 28 and is situated on the central plane 94.

[0274] The first shaft portion 110 houses the first roller portion 116 of the cleaning roller unit 18, and the second shaft portion 112 houses the second roller portion 118. The first roller portion 116 and the second roller portion 118 are separate units, but they rotate about the same axis of rotation 46 when they are mounted on the shaft 108.

[0275] The first roller portion 116, mounted on the first shaft portion 110, extends to or nearly to the first lateral side 26. The second roller portion 118, mounted on the second shaft portion 112, extends to or nearly to the second lateral side 28. This results in no or minimal roller-free spacing between the cleaning roller unit 18 and the corresponding lateral sides 26, 28. This enables near-edge cleaning.

[0276] The middle portion 114 of shaft 108 is rollerless. Torque is effectively coupled to drive unit 104 at this middle portion. An intermediate driver for cleaning roller unit 18 is present.

[0277] The first roller portion 116 and the second roller portion 118 are respectively fitted onto their respective shaft portions 110 or 112 from the outer sleeve, and are correspondingly locked to their respective shaft portions 110 or 112 to obtain a connection that resists relative rotation.

[0278] Regarding the longitudinal axis 24, the middle portion 114 of the shaft 108, which is further aligned with the roller housing 106 and the swing joint 84, is located on the central plane 94 and is constructed in particular to be mirror-symmetrical with respect to the central plane 94.

[0279] As described above, the cleaning head 12 includes at least one support element 120. Specifically, exactly one support element 120 is provided. Figure 7 , Figure 19 (d) Figure 23 , Figure 24 The support element 120 is spaced apart from the cleaning roller unit 18 and, together with the cleaning roller unit, defines a placement surface 14. The support element 120 is mounted on the base 30. This allows the cleaning head 12, which includes the cleaning roller unit 18 and the support element 120, to be placed on the ground 16 even when the dirty fluid tank assembly 32 is removed. The support element 120 includes a support column 122 on which rollers or sliders 124 are mounted. The rollers or sliders 124 are used to support the surface 16 to be cleaned. When the floor cleaner 10 is guided, the rollers or sliders 124 are guided on the surface 16 to be cleaned, wherein, for example, a skid is provided.

[0280] The base 30 has a lower side 126 facing the dirty fluid tank device 32. The support column 122 extends laterally, and especially vertically, from the lower side 126 toward the placement surface 14.

[0281] In particular, the support element 120 is oriented in alignment with the middle portion 114 of the shaft 108 about the longitudinal axis 24.

[0282] In particular, the support element 120 is located on the central plane 94.

[0283] When multiple support elements are provided, these support elements are arranged in a series on the central plane 94.

[0284] In one embodiment, there is no roller placement area on the middle portion 114 of the shaft 108, and during cleaning, an intermediate strip remains unloaded on the ground 16 to be cleaned at the middle portion 114. (Cleaning is performed here by driving over it in an offset manner.) The support element 120 is moved over the unloaded area of ​​the ground 16 by aligning the support element 120 with respect to the middle portion.

[0285] The dirty fluid container 32 is matched to the base 30 in shape and size. The dirty fluid container 32 has a bottom 58 with a wall 16 and an inlet opening 56. The dirty fluid container 32 has a lower side 127 and an upper side 128. When the dirty fluid container 32 is fixed to the base 30, the upper side 128 of the dirty fluid container 32 faces the bottom 126 of the base 30. The lower side 127 of the dirty fluid container 32 is located on the bottom 58 and faces away from the upper side 128.

[0286] Between the lower side 127 and the upper side 128, there is a vessel wall 60 and an additional vessel wall 130, which closes the internal space of the dirty fluid tank device 32 for containing dirty fluid.

[0287] The dirty fluid tank device 32 has a wall 60 with a notch 132 for the inlet opening 56 (see [link]). Figure 6 The notch matches the middle portion 114 of the shaft 108. When the dirty fluid tank device 32 is mounted on the base 30, the middle portion 114 is at least partially positioned in the notch 132 of the dirty fluid tank device 32 in a rotatable manner.

[0288] The inlet opening 56 of the inlet device 54 specifically includes a first opening portion 134 and a second opening portion 136.

[0289] The first opening portion 134 is associated with the first roller portion 116, and the second opening portion 136 is associated with the second roller portion 118.

[0290] The dirty fluid tank device 32 may be configured to include a first chamber 138 and a second chamber 140. A first opening 134 is formed in the first chamber 138, and a second opening 136 is formed in the second chamber 140. Dirty fluid is directly coupled into the first chamber 138 via the first opening 134, and into the second chamber 140 via the second opening 136.

[0291] The two chambers 138 and 140 can be fluid-tightly separated from each other, or fluidly connected to each other, so that the dirty fluid can be evenly distributed in the dirty fluid tank device 32.

[0292] The dirty fluid tank device 32 has a cover 142, which at least partially forms the upper side 128. The cover 142 is spaced apart from the bottom 58.

[0293] When the dirty fluid tank device 32 is removed from the cleaning head 12, the cover 142 is removable so that the dirty fluid tank device 32 can be emptied.

[0294] A foot pedal 34 is arranged on the wall 130 of the dirty fluid tank device 32. The foot pedal is arranged such that it is spaced apart from the placement surface 14 when the dirty fluid tank device 32 is fixed on the base 30.

[0295] When the dirty fluid tank device 32 is secured to the cleaning head 12, the foot pedal tongue 34 is arranged to align with the free space 102. The foot pedal tongue is a continuation of the free space 102 away from the rear end 22. The foot pedal tongue is arranged such that it does not obstruct the corresponding swing space of the grip device 36 in the free space 102.

[0296] The foot pedal tongue 34 is located on the central plane 94, and is arranged and constructed in a mirror-symmetric manner with respect to the central plane.

[0297] In one embodiment, the pedal tongue 34 includes a plate 144 having an upturned edge wall 146 (see [link]). Figure 5 The edge wall 146 is rounded here.

[0298] The footplate 34 has a width (in a direction parallel to the swing axis 40 or the rotation axis 46) that is at least as wide as the typical size of a foot wearing shoes.

[0299] The user can place their foot on the foot pedal 34 and then apply appropriate force to lift the cleaning head 12, thereby disengaging the dirty fluid tank device 32 from the base 30. This will be explained in more detail below.

[0300] The upturned, rounded edge of the footplate 34 and the wall 146 prevent the user's foot from slipping sideways. This also avoids sharp edges on the plate 144.

[0301] In one embodiment, spaced ribs or grooves are arranged on the plate 144 to prevent the user's foot from slipping.

[0302] The foot pedal tongue 34 is aligned in the continuation of the free space 102. The foot pedal tongue is aligned with the swing joint 84 about the longitudinal axis 24 of the cleaning head 12, and is also aligned with the middle portion 114 of the shaft 108.

[0303] The dirty fluid tank device 32 has a removal direction 148 away from the base 30. Figure 6The removal direction 148 points towards the placement surface 14, indicating the lower side 126 of the base 30.

[0304] The dirty fluid canister 32 can be removed from the cleaning head 12 in such a way that it can be released and thus removed, for example, by lifting the cleaning head 12 and pressing the dirty fluid canister 32 in the removal direction 148 (e.g., by pressing on the foot pedal 34) or by pulling the dirty fluid canister 32 away from the base 30 in the removal direction 148.

[0305] Alternatively, advantageously, with the cleaning head 12 of the fixed dirty fluid tank device 32 placed on the floor 16 to be cleaned, the user can secure the dirty fluid tank device 32 to the floor 16 by placing their foot on the foot pedal 34 and applying appropriate force, and then release the dirty fluid tank device 32 from the base 30 by lifting the cleaning head 12 upwards, whereby it remains on the floor. This method, as will be described in more detail below, has the advantage of keeping the dirty fluid tank device 32 at least approximately fixed in orientation, thereby largely preventing the dirty fluid, and especially liquids, from sloshing within the dirty fluid tank device 32.

[0306] A space 150 is formed in the cleaning head 12 by the lower side 126 of the base 30, in which the dirty fluid tank device 32 is positioned when it is fixed to the base 30. The support element 120 is also located in this space.

[0307] A through recess 152 is formed on the dirty fluid tank device 32 in conjunction with the support element 120. Figure 7 , Figure 19 (d) Figure 24 The through recess 152 is open at the upper side 128 and the lower side 127. Laterally, the through recess 152 is closed, thus the through recess is fluid-tightly sealed.

[0308] When the dirty fluid tank device 32 is placed on the base 30, the support element 120 passes through the through recess 152, so that the cleaning head 12 can be supported on the floor 16 to be cleaned via the support element 120.

[0309] The through recess 152 is sized such that the support element 120 can pass through it, and correspondingly, it can be removed when the dirty fluid tank device 32 is removed from the base 30. In the illustrated embodiment, the through recess 152 is closed on all sides.

[0310] In principle, it is also possible that the through recess 152 opens to the rear end 22.

[0311] In a preferred embodiment, the through recess 152 has the shape of a (hollow) column.

[0312] When the dirty fluid tank device 32 is placed on the base 30, the through recess 152 is arranged in alignment with the longitudinal axis 24 and the middle portion 114 of the shaft 108, the swing joint 84 and the foot pedal tongue 34 according to the alignment orientation of the support element 120.

[0313] The dirty fluid tank assembly 32 is suspended and held on the base 30. Multiple retainers 154 are provided for this purpose (see...). Figure 11 and 13 These retainers are mounted on the base 30 and extend from its underside 126 toward the placement surface 14.

[0314] In one embodiment, a first retainer and a spaced-apart second retainer are provided. These retainers are configured as described below and are particularly identical in construction. Preferably, the first and second retainers are arranged mirror-symmetrically with respect to the central plane 94, and a free space 102 is located between them.

[0315] exist Figure 9 The text indicates the first location 156 where the first retainer is located and the second location 158 where the second retainer is located. As described, these locations are the fastening points of the dirty fluid tank assembly 32 on the base 30.

[0316] The retainer 154 is configured to retain the vault or the mushroom head.

[0317] They work in conjunction with their respective containment sections 160 of the dirty fluid tank device 32.

[0318] When the dirty fluid tank device 32 is held on the base 30, the retainer 154 is submerged in the associated receiving portion 160. Figure 11 ).

[0319] The retainer 154 and the associated receiving portion 160 form a retainer-receiving portion-assembly 162, which is configured as a locking connection device. Figure 11 The corresponding hold or lock positioning is shown in the diagram.

[0320] The retainer 154 includes a first element 164, which corresponds to a second element 166 of the receiving portion 160 on the dirty fluid tank device 32.

[0321] The first element 164 has a receiving region 168 for the second element 166. The receiving region 168 is configured, for example, in a cylindrical shape.

[0322] The receiving area 168 of the first element 164 is defined by a flange 170. The flange 170 has a diameter (in the direction transverse to the height axis 92) larger than the corresponding diameter of the receiving area 168.

[0323] In one embodiment, flange 170 is arranged as an annular region on first element 164. It has a first surface region 172 facing receiving region 168. A second surface region 174 is coupled to the first surface region 172, and the second surface region faces away from receiving region 168.

[0324] The flange 170 is tapered on the first surface region 172, away from the receiving region 168. It is also tapered on the second surface region 174 and has an incline toward the receiving region 168.

[0325] Because the first surface region 172 forms an inclined plane, as will be explained in detail below, this inclined plane requires the application of force to release the second element 166 from the first component 164. Because the second surface region 174 also forms an inclined plane, this inclined plane requires the application of force to connect the second element 166 and the first element 164.

[0326] Therefore, a certain amount of force (by the user) is required to remove the dirty fluid tank device 32 from the base 30. Furthermore, a certain amount of force is also required by the user to place the dirty fluid tank device 32 onto the base 30. This force is determined by the cone angle of the first surface region 172 and the cone angle of the second surface region 174.

[0327] In one embodiment, the cone angle of the first surface region 172 is greater than the cone angle of the second surface region 174 (see [reference]). Figure 11 There, the first cone angle of the first surface region 172 is labeled with reference numeral 176. The second cone angle of the second surface region 174 is labeled with reference numeral 178. The second cone angle 178 is smaller than the first cone angle 176, which means that the force required to release from the base 30 and remove the dirty fluid canister device 32 is greater than the force required to place (fix) the dirty fluid canister device 32 onto the base 30.

[0328] The second element 166 on the receiving portion 160 of the dirty fluid tank device 32 is configured as an expansion element, having at least two, and preferably at least three, tongues that can move laterally along the height axis 92 (to increase the spacing).

[0329] The second element 166 is pushed onto the retainer 154 as an expansion element.

[0330] When the receiving portion 160 is positioned at the associated retainer 154, under corresponding force, the second element 166 expands as it passes over the second surface region 174 to increase the spacing of the tongues until it reaches the receiving region 168. In particular, the tongues of the expanding element 166 are elastically arranged and spring back. The flange 170 acts as a stop to prevent the dirty fluid container 32 from falling off the base 30.

[0331] A locking connection is established via the retainer-receiver-assembly 162.

[0332] To release the locking connection, the user applies force to the dirty fluid tank device 32, causing the second element (expansion element) to move over the flange 170 and over the first surface region 172. This requires a corresponding force to expand the second element 166 (expansion element) so that its cross-section can be increased accordingly, allowing the flange 170 to be driven over by the second element 166.

[0333] Figure 13 The diagram shows the intermediate state after the passage. There, the locking connection is released. The expansion element 166 (second element 166) has passed the flange 170 and is located outside the receiving area 168.

[0334] exist Figure 13 In the position of the dirty fluid tank device 32 relative to the base 30 shown, when the base 30 is lifted parallel to the height direction 92, the dirty fluid tank device 32 falls off the base 30.

[0335] However, according to Figure 11 A locking connection is established in the blocking position, and the dirty fluid tank device 32 is fixed on the base 30.

[0336] The receiving portion 160 on the dirty fluid tank device 32 is open at the upper side 128 so as to allow the corresponding retainer 154 to be submerged. The receiving portion has a hollow frustoconical widening portion 180 facing the upper side 128. This widening portion 180 forms an introduction aid and a centering aid for the retainer 154 in the associated receiving portion 160, the retainer 154 being configured in a pin shape.

[0337] When the dirty fluid tank assembly 32 is held on the base 30 via the retainer-receiver-assembly 162 (at portions 156, 158), the dirty fluid tank assembly 32 is movably supported (in the direction parallel to / opposite to the height axis 92) and thus is floated. The weight of the floor cleaner 10 is supported on the floor 16 to be cleaned via the cleaning roller unit 18 and the support element 120. The dirty fluid tank assembly 32 does not provide support in this respect. The dirty fluid tank assembly 32 is floated in a manner that allows it to move laterally and, in particular, perpendicularly to the placement surface 14.

[0338] For example, when the diameter of the cleaning roller unit 18 changes (due to manufacturing tolerances or wear), the cleaning element 62 remains in its optimal position relative to the floor 16 to be cleaned.

[0339] The lever assembly 84 allows the grip device 36 to have a swing angle range relative to the cleaning head 12, which is between a lower limit and an upper limit.

[0340] Swing angle 182 (see) Figure 19 (a) Here it is specifically quantified as the angle between the second longitudinal axis 42 of the grip device 36 and the plane 184 parallel to the placement surface 14.

[0341] The minimum swing angle, 182°, i.e., the lower limit, is 0° or greater than 0°. In particular, this lower limit is less than 50°, and preferably less than 40°, and especially preferably less than 30°.

[0342] The lower limit is given by the contact between the grip device 36 and the lower side of the bounded free space 102 (see [reference]). Figure 9 ).

[0343] Since the swing joint 84 is constructed as a track-type joint and due to the presence of free space 102, the lower limit can be approximately 0°, and in particular, less than 10°, preferably less than 5°.

[0344] The smaller the lower limit of the swing angle 182, the smaller the overall height of the floor cleaner 10 (the height of the cleaning head 12 and the handle 36) on the height axis 92 perpendicular to the placement surface 14. Conversely, the smaller the overall height, the greater the ability of the floor cleaner 10 to travel under, for example, furniture. For example, when the lower limit of the swing angle 182 is very small, the downward travel height is essentially determined by the height of the cleaning head 12 on the height axis 92, which includes the corresponding height of the swing angle 182.

[0345] In addition, the swing angle range has an upper limit ( Figure 19 (b)).

[0346] The upper limit of the swing angle of 182 is given as the lock position. Figure 19 Specifically, this upper limit is between 80° and 120° of the swing angle 182. In a preferred embodiment, the upper limit is approximately 90°. Figure 19 (b)).

[0347] The upper limit is as follows: the grip device 36 is provided with a locking position relative to the cleaning head 12, wherein the swingability relative to the cleaning head 12 is blocked in such a way that an increased force is required to enable the grip device 36 to swing about the swing axis 40 at the swing joint 84 again.

[0348] The retainer-receiver-assembly 162 has been described via a retainer 154 fixedly connected to the base 30 and a receiveer 160 arranged on the dirty fluid tank assembly 32. The retainer 154 is rod-shaped, while the receiveer 160 is open. It is also possible to reverse the arrangement kinematically, in which case the rod-shaped element is arranged on the dirty fluid tank assembly 32, and the corresponding open-shaped receiveer is arranged on the base 30.

[0349] A locking device 186 is provided. Figure 10 , Figure 12 ), to be used to establish parking positioning 185 ( Figure 19 (b)).

[0350] Locking device 186 includes one, and especially at least two, and preferably exactly two. Figure 10 , Figure 12 The pin-sinking opening-assembly 188 is arranged in the area of ​​the swing joint 84.

[0351] Figure 9 The diagram shows a first portion 190 and a second portion 192, at which the pin-sinking opening-assembly 188 is positioned respectively. The first portion 190 and the second portion 192 are mirror-symmetrical with respect to the central plane 94.

[0352] The pin-sinking opening-assembly 188 includes a sinking opening 194, which is arranged on the cleaning head 12 with resistance to relative rotation relative to the track guide device 86, and is particularly arranged on the base 30.

[0353] A pin 196 is provided as a mating element for the corresponding sink opening 194. The pin is connected to the grip 36 in a rotatable manner and together with the grip can pivot about the swing axis 40 relative to the cleaning head 12.

[0354] Pin 196 is mounted on guide 198 and is linearly movable along movement axis 200. Movement axis 200 is movable in response to the swinging motion of grip 36 relative to cleaning head 12. It is oriented laterally to the periphery of circular trajectory segment 88.

[0355] Pin 196 is spring-loaded via spring device 202, wherein the spring force of spring device 202 is designed to press pin 196 toward the periphery of circular trajectory segment 88. The spring force of spring device 202 acts on cleaning head 12.

[0356] Pin 196 has flange 204 ( Figure 10 The flange is arranged in a ring. The guide portion 198 has an annular stop 206 for the flange 204. By abutting the flange 204 against the stop 206, a stop for linear movement of the pin 196 is formed on the guide portion 198. Figure 10 The initial position of pin 196 is such that the spring device 202 presses pin 196 against the periphery of the circular track section 88 until flange 204 abuts against stop 206. Figure 10 The initial position exists when pin 196 is not submerged in the recess opening 194. The initial position re-exists when the grip assembly 36 and cleaning head 12 do not reach their stopping position 185, i.e., when the upper limit of the swing angle 182 is not reached. See also Figure 10 Among them, pin 196 did not sink into sinking opening 194.

[0357] With the pin 196 in its initial position outside the recessed opening 194, the grip device 36 is ensured to have free swing relative to the cleaning head 12 about the swing axis 40.

[0358] Each recess 194 is formed on the stop element 208. The stop element 208 includes a recess 194 as a recess or hole. A first inclined plane 210 is arranged or formed on the stop element 208 outside the recess 194. This inclined plane rises from the circular track segment 88. This inclined plane is located at the end of the circular track segment 88 and increases the distance from the swing axis 40 on the first inclined plane 210.

[0359] The first inclined plane 210 is used to guide the pin 196 into the recess opening 194 when a corresponding force is applied to remove the pin 196 from the stop 206 against the spring force of the spring device 202. This force must be applied by the user.

[0360] Pin 196 has a first abutment surface 212 formed at the end of pin 196. The first abutment surface 212 mates with a first inclined plane 210. When pin 196 is inserted into recess opening 194, the first abutment surface 212 is guided along the first inclined plane 210 while in contact with it.

[0361] The recessed opening 194 formed in the stop element 208 has a vessel wall configured as a second inclined plane 214.

[0362] Starting from the lower limit, with the increase of the swing angle 182, the pin 196 will be guided along the circumferential trajectory segment 88, and then pass through the first inclined plane 210 into the sinking opening 194.

[0363] The second inclined plane 214 is used to guide the pin 196 out of the sinking opening 194 as the swing angle 182 decreases from the upper limit.

[0364] Pin 196 has a second abutment surface 216 that matches a second inclined plane 214.

[0365] In order to guide the pin 196 out of the recess opening 194, the second abutment surface 216 abuts against the second inclined plane 214 and is guided along the second inclined plane 214 (as the swing angle 182 decreases). For this, the spring force of the spring device 202 must be overcome.

[0366] In one embodiment, the first inclined plane 210 has a smaller angle than the second inclined plane 214. Thus, the force required to release the lock by guiding the pin 196 out of the recess opening 194 is greater than the force required to guide the pin 196 into the recess opening 194 via the second inclined plane 214 and establish the lock, thereby achieving the stopping position 185.

[0367] Examples of alternatives to pin 196' ( Figure 14 The pin has a tapered abutment surface 197 at its tip. In another alternative embodiment, the pin is spherically shaped at its tip (in...). Figure 14 (Indicated by a dashed line). Pin 196 or pin 196' is made of metal, in particular.

[0368] When the pin 196 is guided on the corresponding circular track section 88 outside the stop element 208, it is preferable that the tip 218 between the first abutment surface 212 and the second abutment surface 216 abuts against the circular track section 88.

[0369] The above embodiment describes that the corresponding pin 196 of the pin-sinking opening-assembly 188 is guided on the circular trajectory segment 88, just like the mating device 90.

[0370] It is also possible that a circular track section 88 is provided, separate from the circular track section 88 used for the mating device 90, but still concentric with the swing axis 40.

[0371] When reached according to Figure 12 When the device is in the locked position, the user can release the lock by applying a relatively high force, by applying torque toward the floor cleaner 10 in the direction of the floor 16 to be cleaned, which is normally placed via the cleaning head 12, to the handle device 26, and guide the corresponding pin 196 out of the recess opening 194. Then, free swinging can be achieved up to the lower limit.

[0372] In order to achieve a locked stop position 185 by sinking the pin 196 into the sinking opening 194, the user pivots the grip 36 about the swing axis 40 toward the stop position 185 until the stop position 185 is achieved by locking the pin 196 into the associated sinking opening 194. Figure 10 The image shows the intermediate position where the target is about to be locked.

[0373] exist Figure 19 (a) through (e) show the different swing positions of the grip 36 relative to the cleaning head 12.

[0374] Figure 19 (a) shows the swing position of the "working" device. The swing angle 182 is between the lower and upper limits. The floor 16 to be cleaned can be treated by the floor cleaning machine 10 to perform the cleaning process. The user matches the swing angle 182 according to their height. When walking under furniture or the like, the swing angle 182 is reduced.

[0375] The user guides the cleaning head 12 onto the floor 16 to be cleaned via the grip device 36, which is set to swing angle 182. The cleaning roller unit 18 rotates about the rotation axis 46. Due to the rotation direction 52, the cleaning head 12, and thus the floor cleaning machine 10, is propelled.

[0376] The grip 36 is directly connected to the roller housing 106, which in turn is the cleaning roller unit 18. As the grip 36 oscillates about the pivot axis 40, the cleaning roller unit 18 pivots accordingly. When the cleaning roller unit is supported on the surface 16 to be cleaned, it rolls on the surface 16. This motion is superimposed on the rotation of the cleaning roller unit 18 about the pivot axis 46 and has no negative impact on the cleaning result or similar conditions. Due to the rotation of the cleaning roller unit 18, the range of angles traversed by the cleaning roller unit 18 within the same unit of time is much larger than during the oscillating motion.

[0377] The grip 36 is directly connected to the cleaning roller unit 18 and acts directly on the cleaning roller unit 18 with its weight. The weight of the grip 36 presses the cleaning roller unit 18, with its roller portions 116, 118, against the surface 16 to be cleaned. The grip 36 provides the squeezing pressure of the cleaning roller unit 18 onto the surface 16 to be cleaned through its own weight. This improves the cleaning effect; the mechanical impact of the cleaning roller unit 18 on the surface 16 to be cleaned is reduced. The cleaning ability of the floor cleaner 10 is improved.

[0378] By constructing the aforementioned oscillating joint 84 as a track-type oscillating joint, a large oscillation range between the lower and upper limits is obtained.

[0379] To park the floor cleaning machine 10, the user increases the swing angle 182 until it reaches the parking position 185. Figure 19 (b) and the grip 36 is locked to the cleaning head 12 via the locking device 186. In the parking position 185, the grip 36 will not "fall down" on its own (due to its own weight) and will reduce the swing angle 182 towards the lower limit.

[0380] In the parking position 185, the floor cleaning machine 10 is parked for storage, for example. In particular, it is also configured that in the parking position 185, possible additional parts of the cleaning roller unit 18 and the cleaning head 12 are automatically cleaned via a corresponding cleaning station or parking station (not shown in the figure). For example, it is also possible to charge the battery at the corresponding ground station and replenish the cleaning fluid tank 50. If necessary, the dirty fluid tank 32 can also be emptied at the ground station.

[0381] Based on the parking position 185, it is also possible to easily remove the dirty fluid tank unit 32 from the cleaning head 12. Figure 19 (c) and (d)).

[0382] When the cleaning head 12 is normally placed on the floor 16 to be cleaned, the user applies force to the foot pedal 34, particularly by stepping on the floor 16. Figure 19 The figure is indicated by reference numeral 220. The user then applies a torque to the grip 36 beyond the upper limit and further increases the swing angle 182. This torque is applied such that the grip 36 should pivot towards the ground 16 to a certain extent, but pivot towards the front end 20 away from the rear end 22 of the cleaning head 12.

[0383] The torque is applied during the stop positioning 185, in which the grip 36 is locked to the base 30 by a locking device. If necessary, the swing angle 182 can also be slightly increased by the clearance at the clearance-sinking opening-assembly 188. When this clearance is fully utilized, the cleaning head 12, still supported on the ground 16, particularly via the cleaning roller unit 18, will rotate relative to the dirty fluid tank assembly 32. This causes the base 30 to lift relative to the dirty fluid tank assembly 32.

[0384] This causes the retainer 154 to be removed from the corresponding receiving portion 160. The locking position is released, and the cleaning head 12 can then be removed from the dirty fluid tank device 32 (see...). Figure 19 (d)).

[0385] Here, the dirty fluid tank device 32 is held on the ground 16 by the user's intervention on the foot pedal 34. The user fixes the dirty fluid tank rotor 32 to the ground 16 by force 220.

[0386] Thus, when the dirty fluid tank device 32 is removed from the cleaning head 12, the movement of the dirty fluid tank device 32 is minimized, and the sloshing of liquid dirty fluid in the dirty fluid tank device 32 is largely prevented.

[0387] The removal of the dirty fluid tank device 32 from the cleaning head 12 has been described above in conjunction with the application of torque to the cleaning head 12 toward the ground 16, and especially the pivoting.

[0388] In principle, it is also possible to remove the cleaning head 12 from the dirty fluid tank device 32 by pulling it upwards, wherein the user secures the dirty fluid tank device 32 to the ground 16 by applying force to the foot pedal tongue 34.

[0389] exist Figure 19 (d) shows the situation after the dirty fluid tank device 32 is released from the cleaning head 12, either by swinging it up or by pulling it directly upwards. The cleaning head 12 in the handle device 36 is finally removed from the dirty fluid tank device 32.

[0390] exist Figure 19 (e) shows the cleaning head 12 being placed back onto the dirty fluid tank device 32, i.e., the dirty fluid tank device 32 is secured to the cleaning head 12. For this purpose, the dirty fluid tank device 32 is placed on the ground 16. If necessary, the user secures the dirty fluid tank device 32 to the ground 16 by applying force to the foot pedal tongue 34.

[0391] The cleaning head 12 is then placed on the dirty fluid tank device 32 from above, or more precisely, the corresponding retainer 154 is submerged into its respective receiving portion 60 on the dirty fluid tank device 32 until locking is achieved (and the respective second element 166 is then located in its respective receiving area 168 of the first element 164).

[0392] The cleaning head 12 is preferably placed when the grip device 36 is in a stationary position 185 relative to the cleaning head 12, that is, the grip device 36 is locked onto the cleaning head 12 by the locking device 186.

[0393] Due to the corresponding construction of the first surface region 172 and the second surface region 174, the dirty fluid tank device 32 can be removed from the cleaning head 12. Figure 19 (c) and (d) are more fixed than it. Figure 19 (e) It is preferable to require greater force.

[0394] In principle, users can remove the dirty fluid canister 32 from the cleaning head 12 and insert it into the cleaning head 12 without using their hands; that is, users do not need to grasp the dirty fluid canister 32. In particular, users can perform the corresponding process by grasping and holding the handle 36. Users also do not need to bend over or kneel down for this purpose.

[0395] The scraping element 70 is movably arranged on the cleaning head 12 and the base 30 via the retainer 72. Figures 28 to 30 An embodiment of the retainer 72 is shown. The retainer 72 has a base 222. The base 222 has a rear end 224 and a front end 226. The base 222 is wider toward the front end 226 than the rear end 224; the base 222 has a first region 228 and a second region 230, wherein the first region 228 has the rear end 224 thereon, and the second region 230 has the front end 226 thereon.

[0396] The retainer 72 is held in a swingable manner on the base 30 of the cleaning head 2 via the first region 228. The second region 230 carries the scraping element 70 and the comb element 232.

[0397] A pivot post 234 is arranged in the first region 228, extending laterally outward. Opposite pivot posts 234 are provided here, aligned in orientation. The pivot post 234 defines the swing axis 23. When the retainer 72 is fixed to the base 30, the swing axis 236 is parallel to the swing axis 40 or parallel to the rotation axis 46. It is parallel to the placement surface 14.

[0398] In one embodiment, a through-type scraping element 70 is provided for the cleaning roller unit 18, which acts on the first roller portion 116 and the second roller portion 118 (FIG. 25(a)). In particular, no recess or similar structure is provided for the intermediate portion 114. The scraping element 70 extends continuously between the end 238 on the first end side and the opposite end 240 on the second end side.

[0399] In one embodiment, the scraping element 70 is arranged or constructed as a rib on the second region 230. In particular, the rib is integrally connected to the second region 230, that is, integrally connected to the retainer 72.

[0400] Comb element 232 is also mounted on retainer 72. Comb element acts on cleaning roller unit 18 and is used to hold hair; comb element 232 is a hair comb.

[0401] The comb element 232 includes at least one series 242, and in particular multiple series 242, of pins 244. Adjacent pins 244 are spaced apart from each other. The pins are recessed into the liner 246 of the cleaning roller unit 18 (see, for example, [reference needed]). Figure 20This is to "filter out" hair from the cleaning roller unit 18 to some extent.

[0402] exist Figure 20 The figure shows the length 248 of the pin 244 sinking into the lining 246.

[0403] It is also configured that the scraping element 70 is recessed into the lining 246.

[0404] Regarding the direction of rotation 52 (see...) Figure 3 In this arrangement, the comb element 232 is positioned downstream of the scraping element 70. The area of ​​the cleaning roller unit 18 that rotates from the ground 16 in the rotation direction 52 first passes through the scraping element 70 and then through the comb element 232. This results in a space-optimized arrangement.

[0405] Comb element 232 (serial 242) is arranged on the second region 230 between the front end 226 and the scraping element 70 (see...) Figure 30 ).

[0406] According to Figures 28 to 30 In the embodiment shown, the lateral length of the comb element 232 is shorter than that of the scraping element 70, that is, the distance between the outer ends of the comb element 232 is smaller than the distance between the end portions 238 and 240 of the scraping element 70. Figure 30 ).

[0407] The retainer 72 is held on the base 30 in a swinging motion. This retainer is spring-loaded to press the scraping element 70 and the comb element 232 into the liner 246. A corresponding spring arrangement is provided, for example, on a corresponding swing bearing 250 in the region of the shaft post 234. This is in Figure 20 The figure is indicated by reference numeral 252 in the accompanying drawings.

[0408] Alternatively or additionally, for example, the corresponding helical springs of the spring device may be supported on the base 30 and the second region of the retainer 72 so as to press them against the cleaning roller unit 18.

[0409] As described above, the scraping element 70 is arranged as a rib 254 on the second region 30. This rib 254 has a first wing 256 facing the access opening 56. It has an opposing second wing 258 facing away from the access opening 56. Figure 20 The second wing 258 faces the comb element 232. An edge 260 exists between the first wing 256 and the second wing 258. The edge 260 forms a contact line 262 (Fig. 25). This contact line corresponds to the direction of the edge and can be described by a mathematical curve.

[0410] The rib 254 of the scraping element 70 has a triangular shape in cross-section via the first wing 256 and the second wing 258 (see...). Figure 20 Contact line 262 has a limited width.

[0411] Contact line 262 is located in liner 246 (see) Figure 20 (or at least abut against the liner 246.) The scraping element 70 contacts or sinks into the liner 246 via the contact line 262.

[0412] The scraping element 70 is configured as a guide for contaminated fluid on the cleaning roller unit 18. In one embodiment (FIG. 25(a)), it is configured such that the contaminated fluid is removed from the cleaning roller unit 18 (from the liner 246) via the scraping element 70 and is also guided in a defined manner to an intermediate region 264. This intermediate region 264 is located at both the cleaning roller unit 18 and the scraping element 70. From the intermediate region 264, the contaminated fluid (most of it) is coupled into the inlet opening 56. The intermediate region 264 is located on the central plane 94.

[0413] The scraping element 70 is constructed in an arched manner. The contact line 262 has a first length L1 (arc length) between the end 238 on the first end side and the end 240 on the second end side.

[0414] The distance D between the end 238 on the first end side and the end 240 on the second end side, wherein the direction of the distance D is parallel to the swing axis 236 or parallel to the swing axis 40 or parallel to the rotation axis 46, and the distance is less than the length L1.

[0415] In one embodiment, the cleaning roller unit 18 (as a combination of a first cleaning roller 116 and a second cleaning roller 118 spaced apart) has a second length L2 in the spacing direction (i.e., parallel to the axis of rotation 46) (see Figure 4 The second length is less than the length L1.

[0416] The curvature of the scraping element 70 at the contact line 262 can be two-dimensional or three-dimensional. In this sense, the mathematical curve describing the direction of the contact line 262 and being an arched curve can be a planar curve (two-dimensional curvature) or a spatial curve (three-dimensional curvature).

[0417] In particular, the corresponding curve that mathematically describes the orientation of contact line 262 has a first curvature (in the sense of differential geometric curvature), or has a first curvature and a second curvature.

[0418] In particular, the first curvature is negative, that is, the corresponding mathematical curve describing the direction of the contact line 262 is concave, or the first curvature and the second curvature are both negative and the corresponding curves are concave.

[0419] The inlet device 54 forms a discharge area for allowing dirty fluid to enter the dirty fluid tank device 32 from the cleaning roller unit 18. The contact line 262 is concave in shape toward this discharge area, i.e. toward the inlet opening 56. This concave structure is located at the first side wing 256.

[0420] On the second flank 258, i.e., away from the discharge area (inlet opening 56), there is a convex structure. The corresponding concave region 266 and convex region 268 are shown in Figure 25.

[0421] In one embodiment, the contact line 262 has the shape of an arc segment. The corresponding mathematical curve describing the orientation of the contact line 262 has a constant curvature. In particular, a constant first curvature can be set, and a constant second curvature can exist if the contact line 262 can be described by a space curve.

[0422] Specifically, the radius of curvature R is set between 2L² and 6L² (2L²... <R<6L2)。

[0423] The scraping element 70 has a vertex 270 on the contact line 262, which, in one embodiment (see Figure 25(a)), is arranged on the central plane 94. The direction of the mathematical curve describing the path of the contact line 262 can be described in cylindrical coordinates. It is conceivable to project the contact line 262 onto a (hypothetical) cylinder 272 having a cylindrical axis 274 (Figure 25(a)). The contact line 262 is constructed with mirror symmetry about the vertex 270 or the central plane 94 (Figure 25(a)). The polar angle f varies along the curve. The maximum polar angle f exists at the vertex 270 (point B according to Figure 25(a)). s And starting from that vertex 270, the polar angle f s Decreasing. The polar angle decreases in the same way toward the ends 238° and 240°, and in particular, decreases steadily and continuously. In particular, there is also a monotonic decrease.

[0424] Alternatively, the distance between the curve and the axis 274 of the cylinder can be set to decrease.

[0425] Figure 21 The diagram shows a cross-section passing through the cleaning head 12 at point A according to Figure 25, and... Figure 22 The image shows a cross-section at point B (i.e., at vertex 270).

[0426] There is an angle between the first side wing 256 and the plane 276 parallel to the placement surface 14. According to Figure 21 At point A, the angle is α. According to... Figure 22 At vertex 270, the angle is β, where β is greater than α. At point B, the scraping element 70 penetrates a smaller distance into the lining 246 compared to point A (see...). Figure 17 and 16 This is caused by the corresponding curvature at contact line 262.

[0427] Specifically, the inlet opening 56 is configured to have a third length L3 along the scraping element 70, which is shorter than the first length L1. Through the guiding function of the scraping element 70, the dirty fluid is also transported at the cleaning roller unit 18 to the discharge area (towards the inlet opening 56). Thus, a smaller inlet opening 56 is sufficient, thereby further reducing the contaminated area on the floor cleaner 10.

[0428] On the surface of the cleaning roller unit 18 and also in the intrusion area of ​​the scraping element 70, due to the curvature of the scraping element 70, a guiding area for the dirty fluid is formed on the cleaning roller unit 18. Through this guiding area, the dirty fluid on the cleaning roller unit 18 is guided towards the central region 264 by means of the scraping element 70. This allows the discharge area to be configured smaller relative to the spacing direction parallel to the rotation axis 46; that is, the inlet opening 56 can be constructed with a shorter length L3 than, for example, in the case of a straight scraping element 70. This results in a smaller transfer area for conveying dirty fluid to the dirty fluid tank device 32. This simplifies the discharge of dirty fluid and reduces equipment contamination.

[0429] Furthermore, any foam that may appear on the cleaning roller unit 18 is guided towards the central region 264 by the scraping element 70. This reduces, or at least significantly reduces, the amount of foam leaking from the end side of the cleaning roller unit 18.

[0430] In the embodiment according to FIG25(a), a scraping element 70 is described, which is associated with a cleaning roller unit 18 having a first roller portion 116 and a second roller portion 118, wherein a vertex 270 is arranged on a central plane.

[0431] Figure 25(b) shows an alternative embodiment in which the scraping elements are constructed non-through. Each roller section 116 or 118 is equipped with its own scraping element, wherein, in particular, these scraping elements are arranged on a single retainer (retainer 72).

[0432] Figure 25(b) shows an example of the contact line 262' for the first roller section 116.

[0433] The first roller section has a length of L2*.

[0434] The length L2* is located between the ends of the corresponding end sides of the first roller section 116 (or the second roller section 118).

[0435] The corresponding edge element has an edge orientation 262', which is symmetrical. In the illustrated embodiment, the corresponding scraping element corresponding to the first roller portion 116 (or the second roller portion 118) is circularly arched, wherein the radius of curvature R* is particularly between 2L2* and 6L2* (2L2*...). <R*<6L2*)。

[0436] This enables, in particular, the removal of dirty fluid from the corresponding roller sections 116 or 118.

[0437] Regarding the cleaning roller unit 18, the combination of scraping elements has a "double-hump shape", wherein the corresponding scraping elements in the combination can be spaced apart or continuous.

[0438] In principle, it is also possible, such as Figure 26 and Figure 27 As indicated, the corresponding arch of the scraping element 70 is asymmetrical and has no apex or no apex at the center plane. Therefore, the dirty fluid can be directed to one side 310 in particular. Figure 26 ) or one side 312 ( Figure 27 ).

[0439] In this principle, it is possible, such as Figure 26 and 27 As indicated, the orientation of the scraping element 70 is related to the cleaning roller unit 18 which is generally composed of a first roller portion 116 and a second roller portion 118, or only to one roller portion 116 or 118.

[0440] Regarding the cleaning roller unit 18 having a first roller portion 116 and a second roller portion 118, according to Figure 26 Or the direction of 27 is asymmetrical. For example, when according to Figure 26 The direction of the movement is directed at the first roller section 116, and according to... Figure 27 When the direction of the roller is directed toward the second roller portion 118, the overall direction is symmetrical with respect to the cleaning roller unit 18 having the first roller portion 116 and the second roller portion 118. In this embodiment, outward extension occurs in particular.

[0441] It is also possible to set the situation in reverse, that is, the export is inward and the rolls of roller sections 116 and 118 are interchanged.

[0442] In principle, when the cleaning roller unit has only one roller section, it is also possible to implement the method using the arched scraping element.

[0443] The construction of the curved scraping element 70 has been described in conjunction with the floor cleaning machine 10. This arched construction solution can also be used in other types of floor cleaning machines, such as self-propelled and self-steering cleaning machines (cleaning robots).

[0444] The floor cleaning machine 10 according to the present invention operates as follows:

[0445] In the cleaning operation mode, the cleaning head 12 is placed on the floor 16 to be cleaned. The user guides the cleaning head 12 on the floor 16 via the handle device 36. After activation, the cleaning roller unit 18 rotates about the rotation axis 46, wherein the drive is realized via the drive motor 98.

[0446] In the wiping operation mode (wet cleaning operation mode), the cleaning fluid is supplied from the tank device 50 for the cleaning fluid to the cleaning roller unit 18.

[0447] The surface 16 to be cleaned is thus wetted to better loosen the dirt. The dirt is carried along and transported via the cleaning roller unit 18 to the scraping element 70. At this point, liquid containing dirt particles is released from the cleaning roller unit 18 and conveyed to the dirt liquid filling device 32.

[0448] Due to the guiding function of the scraping element 70, the discharge of dirty fluid is facilitated based on the corresponding curvature.

[0449] It can also accommodate large debris. The cleaning element 62 ensures that large debris is delivered to the cleaning roller unit 18, which transports the large debris directly to the dirty fluid tank device 32 and / or removes it via the scraping element 70.

[0450] Hair is removed from the cleaning roller unit 18 via the comb element 232.

[0451] In principle, a pure cleaning operation mode without using cleaning fluid for wetting is also possible. In particular, the user can then adjust the setting to not wet the surface via the control panel.

[0452] In particular, the cleaning roller unit 18 is used for wet cleaning operation mode, wherein the lining 246 is a textile material. The cleaning roller unit 18 can also be used in the sweeping process.

[0453] It is also possible, for example, to replace the cleaning roller unit 18 for the cleaning process and use a cleaning roller unit in which the lining is a brush.

[0454] The floor cleaning machine 10 can perform either dry or wet cleaning as needed.

[0455] The lever assembly 36 is supported on the cleaning roller unit 18 via the track-type hinge 84, and a corresponding squeezing pressure is applied to the surface 16 to be cleaned. This enhances the mechanical action of the cleaning roller unit 18 on the surface 16 to be cleaned, and improves the dirt removal and dirt holding capacity of the floor cleaner 10.

[0456] Due to the structure of the aforementioned swing joint 84, the cleaning roller unit 18 is subjected to maximum compressive pressure on the floor cleaner 10 itself via the grip device 36.

[0457] The dirty fluid tank device 32 remains in the same position relative to the surface 16 to be cleaned. This also allows the cleaning element 62 to remain in the same position relative to the surface 16. This results in improved capacity for coarse dirt and overall improved cleaning efficiency.

[0458] The ease of operation of the handle 36 on the cleaning head 12 was improved. Improved downward mobility was achieved when using furniture, etc.

[0459] Because of the foot pedal 34 and the stopping position 185, the dirty fluid container 32 can be easily removed from the cleaning head 12, or the cleaning head 12 can be easily placed on the dirty fluid container 32. In particular, the user does not need to use their hands to grab the dirty fluid container 32 in order to remove or insert it.

[0460] By constructing the swing joint 84 as a track-type joint, it is ensured that in each swing position of the grip 36 relative to the cleaning head 12 about the swing axis 40 within the swing angle range, the dirty fluid tank device 32 always occupies the same position relative to the ground 16 and remains parallel to the ground 16.

[0461] Locking is achieved in the parking position 185, and the floor cleaning machine 10 is in a stable position, that is, the handle device 36 is locked, and the floor cleaning machine 10 "will not fall over by itself".

[0462] By arranging at least one support element 120 on the base 30 (rather than on the dirty fluid tank assembly 32), optimal support is achieved for the weight of the cleaning head 12 and the dirty fluid tank assembly 32 on the surface 16 to be cleaned. This allows for the dirty fluid tank assembly 32 to have a relatively large dirty fluid holding volume.

[0463] In one embodiment ( Figures 15 to 18 The grip device 36 is provided with rotatability about the rotation axis 41, especially relative to the handle 38.

[0464] Therefore, the grip device 36 includes a first part 278 and a second part 280, wherein the second part 280 is rotatable about a rotation axis 41 relative to the first part 278.

[0465] In one embodiment, the first portion 278 coincides with the first region 76 of the grip assembly 36, and the second portion 280 coincides with the second region 78 of the grip assembly.

[0466] In one embodiment, the rotation axis 41 is coaxial with the first longitudinal axis 80. However, in principle, it is also possible that the rotation axis 41 is parallel to, for example, the second longitudinal axis 42. An embodiment in which the rotation axis 41 is parallel to the first longitudinal axis 80 is described below.

[0467] When rotating about the rotation axis 41, in particular, the drive motor 98 and the transmission device 104 do not rotate together. They are both arranged on the first part 278.

[0468] A locking device 282 is provided. Figures 15 to 18 The locking device is in the locked position 284. Figure 15 , Figure 16 The second part 280 is freed from rotation relative to the first part 278 (the second region 78 relative to the first region 76) in the outside position, while in the locked position 284, the rotation of the second part 280 of the grip 36 relative to the first part 278 of the grip 36 about the rotation axis 41 is blocked. Figure 17 , Figure 18 ).

[0469] According to Figures 15 to 18 In the illustration, shield 386 (see...) Figure 4 The locking device 284 was removed to illustrate its operation.

[0470] The locking device 284 includes a slider 288, which is arranged in a movable manner, and in particular in a linear manner, on the first part 278 (on the first region 76). The movement axis 289 is here parallel to the rotation axis 41 in particular.

[0471] The slider 288 has a protrusion 290 in the first end region (see, for example, see...). Figure 16The slider 288 can be supported on the cleaning head 12 via the protrusion 290, and thereon on the corresponding mating surface 292. Outside the stopping position 185, the protrusion 290 is spaced apart from the mating surface 292. When the stopping position 185 is reached, the protrusion 290 acts on the mating surface 292, causing the slider 288 to move in the direction of movement 289. The slider 288 is spring-supported and here supported on the first portion 278 via a spring device 294. This spring device is arranged and designed to press the slider 288 with the protrusion 290 toward the cleaning head 12. To move the slider 288 in the opposite direction (away from the cleaning head 12), the spring force of the spring device 294 must be overcome. This overcoming of the spring force of the spring device 294 occurs when the stopping position 185 is reached. By supporting the protrusion 290 on the mating surface 292, the slider 288 moves generally toward the second portion 280.

[0472] At the end opposite to the end where the protrusion 290 is located, the slider 288 has a recessed element 296. In the stopping position 185, the recessed element 296 can be recessed into the corresponding recessed opening 298 of the second part 280. Thus, a form lock is achieved in terms of rotatability about the rotation axis 41, and the second part 280 (second region 78) of the grip device 36 can no longer rotate about the rotation axis 41 relative to the first part 278 (first region 76).

[0473] When the grip 36 is guided into the parking position 185, the slider 288 is pushed as a whole toward the second part 280, and the sinking element 296 sinks into the sinking opening 298 (when the second part 280 is oriented relative to the first part 278), and in the corresponding locking position 284, the rotatability of the second part 280 relative to the first part 278 about the rotation axis 41 is blocked.

[0474] Outside the stopping position 185, the spring device 294 acts on the slider 288 in such a way that it moves or remains there toward the cleaning head 12. Then, the sinking element 296 is removed from the sinking opening 298, and outside the locking position 284, the second part 280 can rotate about the rotation axis 41 relative to the first part 278.

[0475] The locking device 284 has an overload protection 300. This overload protection 300 is mainly used to prevent damage when twisting about the rotation axis 41 occurs during the parking positioning 185.

[0476] In one embodiment, the slider 288 is (at least) composed of a first portion 302 and a second portion 304. A protrusion 290 is located on the first portion 302. A recessed element 296 is disposed on the second portion 304.

[0477] The second part 304 is slidably supported on the first part 302, wherein there is support via a spring device 306.

[0478] In particular, the spring device 306 is "hard" compared to the spring device 294, and is significantly harder than the spring device 294.

[0479] In the "normal state," the spring force of the spring device 306 operates in such a way that it pushes the second part 304 away from the first part 302 until the stop 308 of the second part 304 reaches the first part 302 (see, for example, [reference needed]). Figure 16 In this state, slider 288 moves as a whole, consisting of first part 302 and second part 304, along the movement direction 289. Therefore, slider 288, having first part 302 and second part 304, can reach locked position 284 in stop positioning 185, and can be outside locked position 284 outside stop positioning 185, and the second part 280 can be rotatable relative to the first part 278 about rotation axis 41.

[0480] In the locked position 284, the slider 288 does not yield relative to the direction of movement 289, or at most yields a certain amount of play. The protrusion 290 causes a blockage towards the cleaning head 12. The blockage towards the second portion 280 is achieved by a recessed element 296 that sinks into the recessed opening 298.

[0481] When a large force, especially a corresponding torque, is applied to the second part 280 relative to the first part 278, the slider 288 will not move as a whole along the direction of movement 289. However, because the slider 288 is constructed in multiple parts, the second part 304 can move relative to the first part 302 despite overcoming the spring force of the spring device 306, and can move away from the stop 308. This, in particular, allows the recessed element 296 to move out of the recessed opening 298. This reduces the risk of damage because it enables avoidance.

[0482] List of reference numerals

[0483] 10 Floor cleaning machines

[0484] 12 Cleaning Heads

[0485] 14 Placement surface

[0486] 16 Floors to be cleaned

[0487] 18 Cleaning Roller Units

[0488] 20 Frontend

[0489] 22 Backend

[0490] 24. Longitudinal axis

[0491] 26 First transverse side

[0492] 28 Second transverse side

[0493] 30 bases

[0494] 32 Dirty Fluid Tank Device

[0495] 34. Foot pedal

[0496] 36. Grip mechanism

[0497] 38 handles

[0498] 40. Swing axis

[0499] 41 Rotation axis

[0500] 42 Second longitudinal axis

[0501] 44 Rotatability

[0502] 46. ​​Axis of rotation

[0503] 48' 48' Battery Holder

[0504] 50 Tank devices for cleaning solutions

[0505] 52. Rotation direction

[0506] 54. Inlet device

[0507] 56. Inlet opening

[0508] 58 Bottom

[0509] 60. Vessel wall

[0510] 62 Cleaning elements

[0511] 64. Coarse dirt

[0512] 66 Conveying device

[0513] 68 Wetting area

[0514] 70 Scratching element

[0515] 72 Retainer

[0516] 74 Dirty fluid

[0517] 76 First District

[0518] 78 Second District

[0519] 80 First longitudinal axis

[0520] 82 obtuse angle

[0521] 84. Swing joint

[0522] 86 Track guidance device

[0523] 88 Circular trajectory segment

[0524] 90. Fitting device

[0525] 92 Height axis

[0526] 94. Central plane

[0527] 98 drive motor

[0528] 100 housing

[0529] 102 Free Space

[0530] 104 Transmission device

[0531] 106 Roller Receiving Section

[0532] 108 axes

[0533] 110 First Axis Section

[0534] 112 Second Axis Section

[0535] 114 Middle section

[0536] 116 First Roller Section

[0537] 118 Second Roll Section

[0538] 120 Support Components

[0539] 122 pillars

[0540] 124 rollers and sliders

[0541] 126 (base) lower side

[0542] 127 (Lower side of dirty fluid tank device)

[0543] 128 upper side

[0544] 130 Container Wall

[0545] 132 Gap

[0546] 134 First opening section

[0547] 136 Second opening section

[0548] 138 First Chamber

[0549] 140 Second Chamber

[0550] 142 covers

[0551] 144 sheet metal

[0552] 146 Edge vessel wall

[0553] 148 Remove direction

[0554] 150 spaces

[0555] 152 Through-hole recess

[0556] 154 Retainer

[0557] 156 First Part

[0558] 158 Second Part

[0559] 160 Accommodation

[0560] 162 Retainer-Receiving Part-Assembly

[0561] 164 First Element

[0562] 166 Second Element

[0563] 168 Accommodation Area

[0564] 170 flange

[0565] 172 First surface region

[0566] 174 Second Surface Region

[0567] 176 First cone angle

[0568] 178 Second cone angle

[0569] 180° widening section

[0570] 182 Swing Angle

[0571] 184 Lower side

[0572] 185 Parking Position

[0573] 186 Locking device

[0574] 188 Pin - Sinking Opening - Assembly

[0575] 190 First Part

[0576] 192 Second Part

[0577] 194 Sink into the opening

[0578] 196, 196' Selling

[0579] 197. Surface against

[0580] 198 Guiding Department

[0581] 200 moving axes

[0582] 202 Spring Device

[0583] 204 flange

[0584] 206 Stop

[0585] 208 stop element

[0586] 210 First Inclined Plane

[0587] 212 First backing

[0588] 214 Second Inclined Plane

[0589] 216 Second backing

[0590] 218 cutting edge

[0591] 220 Force

[0592] 222 Base

[0593] 224 Backend

[0594] 226 Frontend

[0595] 228 First District

[0596] 230 Second Area

[0597] 232 Comb Components

[0598] 234 Axis Pile

[0599] 236 Oscillation axis

[0600] 238 The end of the first end side

[0601] 240 End of the second side

[0602] 242 rows

[0603] 244 stitches

[0604] 246 Lining

[0605] 248 Length

[0606] 250 Oscillating Bearing

[0607] 252 Spring device

[0608] 254 Ribs

[0609] 256 First Flanking

[0610] 258 Second Flanking

[0611] 260 edge

[0612] 262' and 262' contact wires

[0613] 264 Middle Area

[0614] 266 Concave region

[0615] 268 Convex region

[0616] 270 Vertex

[0617] 272 prisms

[0618] 274 Column axis

[0619] 276 Plane

[0620] 278 Part 1

[0621] 280 Part Two

[0622] 282 Locking device

[0623] 284 Locked Position

[0624] 286 Shield

[0625] 288 sliders

[0626] 289 Direction of Movement

[0627] 290 protrusions

[0628] 292 Mating surfaces

[0629] 294 Spring device

[0630] 296 Submerged Components

[0631] 298 Sink into the opening

[0632] 300 Overload Protection

[0633] 302 Part 1

[0634] 304 Part Two

[0635] 306 Spring Device

[0636] 308 stop

[0637] 310 side

[0638] 312 side

[0639] L1 First Length

[0640] L2, L2* Second Length

[0641] L3 Third Length

[0642] D Spacing

Claims

1. A floor cleaning machine comprising a cleaning head (12), a handle arrangement (36) connected to the cleaning head (12), at least one cleaning roller unit (18) arranged on the cleaning head (12), and a dirty fluid tank arrangement (32) arranged in a removable manner on a base (30) of the cleaning head (12), characterized in that At least one support element (120) is arranged on the base (30) of the cleaning head (12), the support element being spaced apart from the at least one cleaning roller unit (18), wherein, during cleaning operation, the cleaning head (12) is supported on the ground (16) to be cleaned via the at least one cleaning roller unit (18) and the at least one support element (120), and the dirty fluid tank device (32) has a through recess (152) corresponding to the at least one support element (120), the at least one support element (120) being guided through the recess when the dirty fluid tank device (32) is placed on the cleaning head (12).

2. The floor cleaning machine according to claim 1, characterized in that, A placement surface (14) for the cleaning head (12) is provided via the at least one cleaning roller unit (18) and the at least one support element (120), the placement surface having at least one of the following characteristics: - The placement surface (14) is a flat surface; - The rotation axis (46) of the at least one cleaning roller unit (18) is parallel to the placement surface (14); - The grip device (36) is hinged to the cleaning head (12) in a manner that allows it to swing about a swing axis (40), and the swing axis (40) is parallel to the placement surface (14); - The removal direction (148) for removing the dirty fluid can device (32) from the cleaning head (12) and the insertion direction for placing the dirty fluid can device (32) into the cleaning head (12) are both transverse to the placement surface (14). - The dirty fluid tank device (32) can be removed from the cleaning head (12) in a downward direction toward the placement surface (14); - The base (30) is spaced apart from the placement surface (14) in the height direction.

3. The floor cleaning machine according to claim 1, characterized in that, The at least one support element (120) includes a roller (124) or a slider.

4. The floor cleaning machine according to claim 1, characterized in that, The at least one support element (120) includes a support column (122) connected to the base (30) and extending away from the base (30) into a space (150) in which the dirty fluid tank device (32) is positioned.

5. The floor cleaning machine according to claim 4, characterized in that... It has at least one of the following characteristics: - A roller (124) or a slider is mounted on the support (122); - When the dirty fluid tank device (32) is fixed on the base (30), the support (122) is positioned in the associated through recess (152) of the dirty fluid tank device (32).

6. The floor cleaning machine according to claim 1, characterized in that, The through recess (152) is open on both the upper side (128) and the lower side (127) of the dirty fluid tank device (32), wherein the upper side (128) faces the base (30) when the dirty fluid tank device (32) is fixed to the base (30), and wherein the lower side (127) faces away from the upper side (128).

7. The floor cleaning machine according to claim 6, characterized in that, The through recess (152) is defined by the vessel wall (130) of the dirty fluid container (32) between the upper side (128) and the lower side (127), wherein the vessel wall (130) is closed or the through recess (152) is open toward one side of the dirty fluid container (32).

8. The floor cleaning machine according to claim 7, characterized in that, The vessel wall (130) is oriented transversely to the upper (128) and / or lower (127) side of the dirty fluid tank device (32).

9. The floor cleaning machine according to claim 1, characterized in that, The at least one cleaning roller unit (18) is disposed on a roller receiving portion (106) of a shaft (108) having a first shaft portion (110), an intermediate portion (114) and a second shaft portion (112), wherein the intermediate portion (114) is located between the first shaft portion (110) and the second shaft portion (112), and the first roller portion (116) of the at least one cleaning roller unit (18) is arranged on the first shaft portion (110), and the second roller portion (118) of the at least one cleaning roller unit (18) is arranged on the second shaft portion (112), and an intermediate driver is provided, the intermediate driver acting on the intermediate portion (114).

10. The floor cleaning machine according to claim 9, characterized in that, The at least one support element (120) is arranged aligned with the intermediate portion (114) about the longitudinal axis (24) of the cleaning head (12).

11. The floor cleaning machine according to claim 1, characterized in that, A foot pedal (34) is arranged on the dirty fluid tank device (32), and when the dirty fluid tank device (32) is fixed on the cleaning head (12), the at least one support element (120) is arranged with the foot pedal (34) aligned with the longitudinal axis (24) of the cleaning head (12) about the cleaning head (12).

12. The floor cleaning machine according to claim 1, characterized in that, Set exactly one support element (120).

13. The floor cleaning machine according to claim 1, characterized in that, The at least one support element (120) is centrally arranged between the first lateral side (26) and the second lateral side (28) of the cleaning head (12).

14. The floor cleaning machine according to claim 1, characterized in that, The dirty fluid tank device (32) is held on the base (30) in a movable manner.

15. The floor cleaning machine according to claim 1, characterized in that... The dirty fluid tank device (32) is connected to the base (30) in a releasable manner by means of a locking device.

16. The floor cleaning machine according to claim 2, characterized in that, The grip device (36) is held on the cleaning head (12) in a swingable manner via a swing joint (84).

17. The floor cleaning machine according to claim 16, characterized in that, The swing joint (84) is configured as a track joint, which has a track-type guide portion of the grip device (36) on the cleaning head (12).

18. The floor cleaning machine according to claim 16, characterized in that, The oscillating joint (84) has a trajectory guide device (86) mounted on the cleaning head (12) in a way that resists relative rotation, and the trajectory guide device has a circular trajectory section (88) having a center located on the oscillating axis (40), and the oscillating joint (84) has a mating device (90) mounted on the grip device (36) in a way that resists relative rotation, and the mating device is supported on the trajectory guide device (86).

19. The floor cleaning machine according to claim 18, characterized in that, The at least one cleaning roller unit (18) is arranged in the region of the front end (20) of the cleaning head (12) and has the following characteristics: - The circular trajectory segment (88) is arranged about the longitudinal axis (24) of the cleaning head (12) after the at least one cleaning roller unit (18); - The circular trajectory segment (88) is arranged on the height axis (92) of the cleaning head (12) above the at least one cleaning roller unit (18).

20. The floor cleaning machine according to claim 18, characterized in that, The mating device (90) is supported on the trajectory guide device (86) via at least three support points.

21. The floor cleaning machine according to claim 16, characterized in that, The swing joint (84) is centrally located between the first lateral side (26) and the spaced-apart second lateral side (28) of the cleaning head (12).

22. The floor cleaning machine according to claim 16, characterized in that, A foot pedal tongue (34) is provided for the cleaning head (12) in the region of the rear end (22) of the cleaning head (12), wherein the rear end (22) is opposite to the front end (20) and the at least one cleaning roller unit (18) is arranged in the region of the front end (20).

23. The floor cleaning machine according to claim 22, characterized in that, The foot pedal (34) is arranged aligned with the swing joint (84) about the longitudinal axis (24) of the cleaning head (12).

24. The floor cleaning machine according to claim 22, characterized in that... It has at least one of the following characteristics: - The foot pedal (34) extends beyond the rear end of the housing (100) of the cleaning head (12); - The foot pedal (34) is mounted on the dirty fluid tank device (32) which is arranged in a removable manner on the cleaning head (12); - The tread tongue (34) has an upturned transverse edge wall (146).

25. The floor cleaning machine according to claim 16, characterized in that, A free space (102) is formed on the cleaning head (12), in which the grip device (36) can move when it pivots about the swing axis (40).

26. The floor cleaning machine according to claim 16, characterized in that... The unit has a drive motor (98) for the cleaning roller unit (18), which is connected to the grip (36) in a manner that resists relative rotation due to the swingability of the grip (36) about the swing axis (40).

27. The floor cleaning machine according to claim 16, characterized in that... It has a transmission device (104) for transmitting torque from the drive motor (98) to the at least one cleaning roller unit (18), wherein the transmission device (104) is connected to the grip device (36) in a manner resistant to relative rotation due to the swingability of the grip device (36) about the swing axis (40).

28. The floor cleaning machine according to claim 16, characterized in that... It has a roller receiving portion (106) on which at least one cleaning roller unit (18) is disposed, wherein the roller receiving portion (106) is connected to the gripping device (36) in a manner resistant to relative rotation due to the swingability of the gripping device (36).

29. The floor cleaning machine according to claim 16, characterized in that, The grip device (36) includes a first region (76) having a first longitudinal axis (80) and a second region (78) having a second longitudinal axis (42), wherein the first longitudinal axis (80) and the second longitudinal axis (42) are oriented at an obtuse angle (82) to each other.

30. The floor cleaning machine according to claim 29, characterized in that... It has at least one of the following characteristics: - The second region (78) is placed on the first region (76); - The first region (76) is the distal region of the grip device (36) or includes the distal region of the grip device (36); - The grip device (36) is hinged to the cleaning head (12) via the first region (76); - A fitting device (90) for the swing joint (84) is arranged in the first region (76); - A drive motor (98) for the at least one cleaning roller unit (18) is arranged on the first region (76). - The first region (76) has a housing (100); - A battery holder is arranged in the first region (76); - A tank device for cleaning fluid is arranged in the first area (76).

31. The floor cleaning machine according to claim 29, characterized in that... It has at least one of the following characteristics: - The second region (78) is the proximal region of the grip device (36) or includes the proximal region of the grip device (36); - A handle (38) is arranged on the second region (78); - A tank device (50) for cleaning fluid is arranged in the second area (78); - A battery holder (48) is arranged in the second region (78); - An operation panel is provided on the second region (78) or at the handle (38) located on the second region (78); - The second region (78) has a straight extension along the second longitudinal axis (42).

32. The floor cleaning machine according to claim 16, characterized in that, The grip (36) has a free swing angle range relative to the cleaning head (12) via the swing joint (84), the swing angle range having a swing angle (182) between the longitudinal axis (42) of the grip (36) and the placement surface (14) of the cleaning head (12) on the surface (16) to be cleaned, wherein the swing angle (182) is within a range between a lower limit and an upper limit, the lower limit and the upper limit having at least one of the following characteristics: - The lower limit is 0° or greater than 0°; - The lower limit is less than 50°; - The upper limit is between 80° and 120°; - At the upper limit, the grip device (36) has a stationary position (185) relative to the cleaning head (12).

33. The floor cleaning machine according to claim 32, characterized in that... It has a locking device (186) that locks the grip (36) and the cleaning head (12) at the upper limit, thereby blocking the swingability of the grip (36) relative to the cleaning head (12).

34. The floor cleaning machine according to claim 33, characterized in that, When the grip is at the upper limit and locked with the cleaning head (12), and when the cleaning head (12) is normally placed on the surface (16) to be cleaned, further pivoting of the grip (36) causes the cleaning head (12) to pivot toward the surface (16) to be cleaned without further user intervention as the swing angle (182) increases.

35. The floor cleaning machine according to claim 33, characterized in that, The locking device (186) includes at least one spring-loaded pin (196, 196') and a corresponding recessed opening (194) for the pin (196, 196'), wherein (i) the at least one pin (196, 196') is arranged on the grip (36) in a way that resists relative rotation, and the corresponding recessed opening (194) is arranged on the cleaning head (12) in a way that resists relative rotation, or (ii) the at least one pin (196, 196') is arranged on the cleaning head (12) in a way that resists relative rotation, and the corresponding recessed opening (194) is arranged on the grip (36) in a way that resists relative rotation.

36. The floor cleaning machine according to claim 35, characterized in that... It has at least one of the following characteristics: - Outside the sinking opening (194), a first inclined plane (210) is provided for the sinking opening (194), which guides the associated pins (196, 196') into the sinking opening (194) when the swing angle (182) increases, wherein the first inclined plane (210) causes the pins (196, 196') to move against the force of the spring loading; - The at least one pin (196, 196') has a first mating surface (212) that matches the first inclined plane (210). - The sinking opening (194) is defined by a vessel wall having a second inclined plane (214) and, when the swing angle (182) is reduced, the associated pins (196, 196') move out of the sinking opening (194) via the vessel wall, wherein the second inclined plane (214) causes the pins (196, 196') to move against the force of a spring-loaded force; - The at least one pin (196, 196') has a second mating surface (216) that matches the second inclined plane (214).

37. The floor cleaning machine according to claim 1, characterized in that... It has at least one of the following characteristics: - A foot pedal (34) is arranged on the dirty fluid tank device (32); - At least one scraping element (70) is arranged on the cleaning head (12), the scraping element acts on the at least one cleaning roller unit (18) and is used to scrape off the dirty fluid from the at least one cleaning roller unit (18); - The at least one scraping element (70) is submerged in the working material of the at least one cleaning roller unit (18); - The dirty fluid is directly transferred from the at least one cleaning roller unit (18) to the dirty fluid tank device (32) without the need to operate the suction device.

38. The floor cleaning machine according to claim 1, characterized in that... It has at least one of the following characteristics: - The grip device (36) is a standing user configuration for standing on the ground (16) to be cleaned, wherein the cleaning head (12) is placed on the ground (16) to be cleaned via the placement surface (14), and the ground cleaning function is guided on the ground (16) to be cleaned via the grip device (36). - The at least one cleaning roller unit (18) is driven by a drive motor (98); - The cleaning head (12) has a housing (100) in which at least one cleaning roller unit (18) is arranged at least partially. - The at least one cleaning roller unit (18) has its outer ends located on the first lateral side (26) and the second lateral side (28) of the cleaning head (12), respectively.

39. The floor cleaning machine according to claim 1, characterized in that... It has at least one of the following characteristics: - At least one scraping element (70) for the at least one cleaning roller unit (18) is arranged on the cleaning head (12). - At least one comb element (232) is arranged on the cleaning head (12), the comb element acting on the at least one cleaning roller unit (18); - The cleaning head (12) is equipped with (iii) at least one cleaning element (62) that conveys the cleaning material to the at least one cleaning roller unit (18). In this context, any one of the elements (i), (ii), (iii) of the at least one cleaning roller unit (18) or any combination of these elements (70, 232, 62) has the same positioning regardless of the swing positioning of the grip device (36) relative to the cleaning head (12).

40. The floor cleaning machine according to claim 1, characterized in that... It has at least one of the following operating modes: - Dry cleaning operation mode, in which cleaning fluid is not applied to the surface (16) to be cleaned or to the at least one cleaning roller unit (18); - Wet wiping operation mode, in which cleaning fluid is applied to the floor to be cleaned (16) and / or at least one cleaning roller unit (18). - Sweeping and wet wiping operation modes, wherein coarse dirt is conveyed to the at least one cleaning roller unit (18) and transferred via the at least one cleaning roller unit (18) to the dirty fluid tank device (32), and the dirty fluid is scraped off from the at least one cleaning roller unit (18) by at least one scraping element (70) and transferred from there to the dirty fluid tank device (32).

41. The floor cleaning machine according to claim 2, characterized in that, The removal direction (148) and the insertion direction are both perpendicular to the placement surface (14).

42. The floor cleaning machine according to claim 7, characterized in that, The vessel wall (130) is oriented perpendicular to the upper side (128) and / or lower side (127) of the dirty fluid tank device (32).

43. The floor cleaning machine according to claim 14, characterized in that, The dirty fluid tank device (32) is held floatingly on the base (30).

44. The floor cleaning machine according to claim 16, characterized in that, The swing axis (40) of the swing joint (84) coincides with the rotation axis (46) of the at least one cleaning roller unit (18).

45. The floor cleaning machine according to claim 23, characterized in that, The foot pedal tongue (34) is centrally positioned between the first lateral side (26) and the second lateral side (28) of the cleaning head (12).

46. ​​The floor cleaning machine according to claim 25, characterized in that, The foot pedal (34) is arranged in the free space (102) or in the continuation of the free space (102).

47. The floor cleaning machine according to claim 29, characterized in that, The obtuse angle (82) is in the range of 120° to 170°.

48. The floor cleaning machine according to claim 29, characterized in that, A removable canister for cleaning fluid is arranged in the first area (76).

49. The floor cleaning machine according to claim 29, characterized in that, A removable canister device (50) for cleaning fluid is arranged in the second area (78).

50. The floor cleaning machine according to claim 32, characterized in that, The lower limit is less than 40°.

51. The floor cleaning machine according to claim 32, characterized in that, The lower limit is less than 30°.

52. The floor cleaning machine according to claim 32, characterized in that, The upper limit is 90°.

53. The floor cleaning machine according to claim 39, characterized in that, The at least one cleaning element (62) is arranged on the dirty fluid tank device (32).

54. The floor cleaning machine according to claim 40, characterized in that, In sweeping and wet wiping operation modes, coarse dirt is conveyed to the at least one cleaning roller unit (18) via the sweeping element (62).

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