EP4452034A1 - Flächenreinigungsmaschine mit gekrümmtem abstreifelement - Google Patents
Flächenreinigungsmaschine mit gekrümmtem abstreifelementInfo
- Publication number
- EP4452034A1 EP4452034A1 EP22823492.8A EP22823492A EP4452034A1 EP 4452034 A1 EP4452034 A1 EP 4452034A1 EP 22823492 A EP22823492 A EP 22823492A EP 4452034 A1 EP4452034 A1 EP 4452034A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cleaning
- roller unit
- machine according
- cleaning machine
- cleaning roller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/02—Floor surfacing or polishing machines
- A47L11/04—Floor surfacing or polishing machines hand-driven
- A47L11/08—Floor surfacing or polishing machines hand-driven with rotating tools
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
- A47L11/4036—Parts or details of the surface treating tools
- A47L11/4041—Roll shaped surface treating tools
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L13/00—Implements for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L13/10—Scrubbing; Scouring; Cleaning; Polishing
- A47L13/28—Polishing implements
- A47L13/30—Implements for polishing and waxing or oiling, with dispensers for wax or oil
Definitions
- the invention relates to a surface cleaning machine, comprising a cleaning head, at least one cleaning roller unit, which is arranged on the cleaning head and can be rotated about an axis of rotation, and at least one stripping element for scraping dirty fluid from the at least one cleaning roller unit.
- a cleaning machine is known from CN 201 197 698 Y.
- a device for cleaning floors or other hard surfaces is known from US Pat. No. 6,026,529.
- a surface cleaning machine with rotating brushes is known from WO 2010/041185 A1.
- a cleaning head for a floor cleaning machine is known from US Pat. No. 7,665,174 B2.
- a floor cleaner which comprises a handle, a main body, a roller mechanism with a roller with a cleaning belt, a scraper and a dirt fluid receptacle.
- a surface cleaning machine with a cleaning roller and a drive unit for driving the cleaning roller is known from WO 2013/106762 A2.
- a dirt tray is provided into which the cleaning roller sweeps dirt as it rotates. The dirt tray can be opened.
- US Pat. No. 7,921,497 B2 discloses a floor scrubbing device which is operated manually and has a drive roller which is coupled to a scrubbing roller.
- a hard floor cleaning device is known from US Pat. No. 3,789,449.
- DE 10 2007 054 500 A1 discloses a household floor cleaning device with a wiping roller.
- a floor cleaning device with a housing, a hose arrangement and a cleaning head is known from US 2006/0272120 A1.
- DE 10 2017 120 723 A1 discloses a cleaning machine station for a cleaning machine, the cleaning machine station having a receiving chamber for a cleaning head of the cleaning machine.
- WO 2005/087075 A1 discloses a floor cleaning machine with a handle which is arranged pivotably on a base.
- CN 107007215 A discloses a floor cleaning robot.
- WO 2017/059602 A1 WO 2017/059600 A1, WO 2017/059601 A1, WO 2017/059603 A1 or DE 20 2016 105 301 A1.
- the object of the invention is to provide a surface cleaning machine of the type mentioned at the outset, which has optimized dirt fluid removal.
- the at least one scraper element is curved and has a contact line with the at least one cleaning roller unit, which has a first length, and that a Distance between ends of the line of contact is less than the first length, the distance being in a direction parallel to the axis of rotation.
- the contact line is that area of the stripping element with which it acts on a covering of the at least one cleaning roller unit and in particular touches it or is immersed in it.
- the at least one stripping element is curved. This results in a curved contact line, which means that dirt fluid that has been wiped off and is detached from the at least one cleaning roller unit is also guided on the cleaning roller unit due to the curvature.
- dirty fluid can be transferred to the dirty fluid tank device in a smaller transfer area than in comparison to straight scraping elements. This simplifies the discharge of dirty fluid. Equipment contamination is reduced.
- any foam that may appear can be guided into a central region of the at least one cleaning roller unit and foam can largely be prevented from escaping at the ends of the at least one cleaning roller unit.
- the first length is an arc length of the line of contact between ends of the line of contact.
- the at least one cleaning roller unit has a second length in the direction parallel to the axis of rotation that is less than the first length of the line of contact.
- the curvature of the at least one stripping element is therefore such that the first length (the arc length) is greater than the corresponding length of the at least one cleaning roller unit.
- the at least one stripping element does not extend up to the front ends of the at least a cleaning roller unit is sufficient, but there is a distance between the corresponding end of the contact line and the corresponding closest front end of the at least one cleaning roller unit.
- the curvature is so severe that the arc length (the first length) is so great that this distance is overcompensated for in terms of lengths.
- the cleaning roller unit comprises a first roller part and a second roller part, which are aligned in the direction of rotation.
- a center drive is provided. It is then possible that a stripping element is provided which is curved and is associated with the cleaning roller unit as a whole (the roller parts together).
- the cleaning roller unit is designed in several parts and each roller part is assigned its own curved stripping element. Depending on the design, there is an optimized stripping of dirty fluid from the at least one cleaning roller unit and an optimized guidance.
- the at least one stripping element has a first curvature and a mathematical curve that describes the course of the contact line is a flat curve, or that the at least one stripping element has a first curvature and a second curvature and the mathematical curve is a space curve.
- a negative curvature makes the corresponding mathematical curve convex. If the curvature is constant, the mathematical curve has a circular shape.
- the radius of curvature is equal to the radius of the corresponding circle.
- the contact line of the at least one stripping element touches an edging of the at least one cleaning roller unit or is immersed in the edging.
- the contact line lies between a first flank and a second flank.
- the contact line lies completely in the trimming, that is to say it is at a distance from an outer surface of the trimming.
- the trimming is at least one of the following: a textile material; a set of bristles.
- a textile material is particularly suitable for wet cleaning.
- a set of bristles is particularly suitable for sweeping cleaning.
- a mixed trimming can also be present.
- an outlet device for dirty fluid is arranged on the cleaning head for removing dirty fluid away from the at least one cleaning roller unit, with at least one wall of the outlet device being formed by the at least one stripping element. This results in a simple structural design. Dirty fluid, which is scraped off by the at least one cleaning roller unit by the at least one scraper element, can be coupled directly into the dirty fluid tank device via the outlet opening of the outlet device.
- the mouth device has a length along the at least one stripping element at a mouth opening which is smaller than the first length. Due to the guiding function of the at least one wiping element, dirty fluid is guided accordingly to a middle area. The transfer area can then be kept smaller. This results in improved dirt fluid removal. The dirt area on the surface cleaning machine itself is reduced.
- the opening device is curved at least on one side in accordance with the design of the at least one stripping element; the orifice means is in fluid communication with a dirty fluid tank means; the orifice device is in fluid communication with a suction unit.
- the solution according to the invention can be used, in particular suction fan-free dirty fluid directly from to convey the at least one cleaning roller unit into the dirty fluid tank device.
- suction it is also possible for suction to take place in particular on the at least one cleaning roller unit.
- a combination is also possible.
- the at least one cleaning roller unit is assigned a delivery area for dirty fluid
- the at least one stripping element is designed to be concave towards the delivery area.
- the at least one stripping element has a guiding function, it detaches dirty fluid from the at least one cleaning roller unit and guides dirty fluid in a central area to the discharge area. This improves the dirty fluid transfer to the delivery area.
- the contact line of the at least one stripping element has the course of a segment of a circle facing the dispensing area. As a result, it has a constant curvature.
- a structurally simple design results when the at least one stripping element is convex in design, facing away from the dispensing area.
- this allows the at least one stripping element to be designed as a type of web with flanks and the contact line on a holder.
- the at least one stripping element is designed symmetrically to a center plane of the at least one cleaning roller unit or a roller, with the center plane being oriented perpendicular to the axis of rotation. Dirty fluid can then be guided via the at least one stripping element in a central region of the at least one cleaning roller unit or a roller for transfer to the delivery area.
- the cleaning roller unit is designed in several parts and to comprise a plurality of roller parts which are arranged next to one another, in particular with respect to the axis of rotation.
- the center plane of the at least one cleaning roller unit is a center plane of the overall device made up of the roller parts.
- the center plane can also be the center plane of a single roller, in which case, for example, the cleaning roller unit comprises a single roller, or it can also be designed in multiple parts and in this case the center plane can then be the center plane of a roller part.
- the at least one stripping element prefferably be designed asymmetrically with respect to the central plane.
- a corresponding guidance of dirty fluid which is not symmetrical to the central plane, can be achieved in particular towards a desired area.
- guidance to one side or to the other side of the cleaning roller unit or a roller part can be achieved. This enables an optimized adaptation to an application.
- the contact line of the at least one stripping element has an apex, with the apex in particular being located centrally between opposite end faces of the at least one cleaning roller unit or one roller.
- a guiding function of the at least one wiping element can thus be implemented in a simple manner, by means of which dirty fluid is guided to the apex (towards a central region) on the cleaning roller unit and is also correspondingly detached.
- the apex it is possible for the apex to be off-centre or for no apex to be present.
- a projection of the contact line of the at least one scraping element onto an imaginary cylinder with a cylinder axis coaxial to the axis of rotation is a curved curve, in particular with at least one of the following: the curved curve is symmetrical about a median plane of the imaginary cylinder, the median plane being perpendicular to the cylinder axis; a polar angle varies along the curved curve from an apex of the curved curve; Starting from an apex of the curved curve with a maximum polar angle, a polar angle decreases along the curved curve and in particular decreases continuously; from a crest of the curved curve, a distance to the cylinder axis varies along the curved curve; starting from the apex of the curved curve with maximum distance to the cylinder axis, the distance to the cylinder axis increases along the curved curve.
- the measures described individually or in any combination result in a guiding function for the at least one scraper element for guiding dirty fluid on the at least one cleaning roller unit in a central area of the at least one cleaning roller unit, the central area being at the apex.
- the at least one stripping element forms a wall between the discharge area for dirty fluid from the at least one cleaning roller unit and a feed area for cleaning liquid to the at least one cleaning roller unit.
- the wall towards the discharge area is concave; the wall towards the feed area is convex.
- the at least one scraping element has a first wall side facing the supply area for cleaning liquid and a second wall side facing the discharge area for dirty fluid, with a direction of rotation of the at least one cleaning roller unit running from the first wall side to the second wall side.
- a propulsion for the surface cleaning machine can then be achieved by the rotationally driven at least one cleaning roller unit.
- the result is an optimized dirt removal.
- the supply area for cleaning liquid is arranged downstream of the discharge area, so that cleaning liquid can be applied to a "clean" side of the at least one cleaning roller unit.
- a direction of rotation of the at least one cleaning roller unit is such that a point on the at least one cleaning roller unit that has touched a floor to be cleaned first comes into a discharge area for dirty fluid and then comes into a feed area for cleaning fluid.
- the at least one scraper element forms a guide element for guiding dirty fluid to the at least one cleaning roller unit, which is designed in particular according to one of the following: Dirty fluid is guided by the guiding element along the at least one scraping element in the direction of a central region, in particular of the cleaning head;
- Foam is guided along the at least one scraping element in the direction of a central area, in particular of the cleaning head.
- dirty fluid can be discharged in an optimized manner, for example directly to a dirty fluid tank device.
- Foam is largely prevented from escaping at the ends of the at least one cleaning roller unit.
- a discharge area for dirty fluid from the at least one cleaning roller unit has a length which is less than the first length and in particular has at most 50% of the first length. This results in an optimized transfer of dirty fluid. The contamination of the machine itself can be kept low.
- the at least one stripping element is spring-loaded and movably held on the cleaning head. It can thus be pressed against the at least one cleaning roller unit in order to obtain an optimized removal result for dirty fluid.
- the at least one stripping element is pivotably mounted on the cleaning head and, in particular, is held on a holder which is pivotally mounted.
- a pivot axis of the pivotable bearing is parallel to the axis of rotation of the rotation of the at least one cleaning roller unit.
- the at least one cleaning roller unit is assigned a comb element, which is in particular held on the same holder as the at least one stripping element.
- the comb element is a hair comb element and is used to pick up hair. Hair can be removed from a trimming material via the comb element detach the at least one cleaning roller unit. This optimizes the cleaning result.
- a dirty fluid tank device is arranged on a base of the cleaning head so that it can be removed. This results in a simple structure. In particular, no additional suction fan is then necessary. This reduces the weight of the surface cleaning machine. Furthermore, the energy consumption can be reduced. In principle, however, it is also possible for the dirty fluid tank device to be arranged in a correspondingly detachable manner on a base of the cleaning head, and for suction to be provided for the dirty fluid tank device. In this embodiment, the removable dirty fluid tank device is then no longer absolutely necessary for emptying the dirty fluid tank device, but only for cleaning it.
- At least one support element is arranged on the base of the cleaning head, which is at a distance from the at least one cleaning roller unit, wherein during a cleaning operation the cleaning head is supported on a floor to be cleaned via the at least one cleaning roller unit and the at least one support element. This results in optimized guidance of the cleaning head over the floor to be cleaned.
- the dirty fluid tank device has a continuous recess assigned to the at least one support element, through which the at least one support element is passed when the dirty fluid tank device is seated on the cleaning head.
- a dirty fluid tank device with a large volume can thus be provided.
- the at least one cleaning roller unit sits on a roller mount of a shaft with a first shaft part, a middle part and a second shaft part, the middle part between the first shaft part and the second shaft part and a first roller part of the at least one cleaning roller unit is arranged on the first shaft part and a second roller part of the at least one cleaning roller unit is arranged on the second shaft part, and a central drive acts on the central part.
- the first roller part and the second roller part can each be guided to a lateral side end of the cleaning head. This enables cleaning close to the edge.
- a central plane of the at least one cleaning roller unit which is perpendicular to the axis of rotation and is located centrally between the front ends of the at least one cleaning roller unit, lies on the central part. It is then advantageous if an apex of the contact line lies at the center plane.
- the dirty fluid tank device is held on the cleaning head so that it can move and, in particular, is floating.
- an optimized position with respect to the floor to be cleaned can be achieved even with a varying diameter of the at least one cleaning roller unit (for example due to manufacturing tolerances or wear).
- a sweeping element which is arranged on the dirty fluid tank device, can be positioned in a correspondingly defined position relative to the ground.
- a support bar means is pivotally mounted on the cleaning head about a pivot joint, wherein a pivot axis of the pivot joint coincides with the axis of rotation of the at least one cleaning roller unit.
- a surface cleaning machine is a floor cleaning machine which can be guided over the holding rod device by a standing operator (who is standing behind the cleaning head on the floor to be cleaned).
- the coincidence of the swivel joint with the axis of rotation makes it possible to completely bear the weight of the holding rod device on the at least one to support the cleaning roller unit.
- a high and in particular maximum contact pressure can be exerted on the at least one cleaning roller unit due to the surface cleaning machine's own weight. This in turn results in an optimized cleaning result.
- the surface cleaning machine prefferably designed as a self-propelled and self-steering cleaning machine (cleaning robot).
- a drive motor is provided for the at least one cleaning roller unit, which drives the rotational movement of the at least one cleaning roller unit. This results in an optimized cleaning result.
- the surface cleaning machine has in particular one of the following operating modes: a dry sweeping operation without applying cleaning liquid to the floor to be cleaned or to the at least one cleaning roller unit; a wet wiping operation with application of cleaning fluid to the floor to be cleaned and/or to the at least one cleaning roller unit; a sweeping operation and a wet wiping operation, with coarse dirt being fed to the at least one cleaning roller unit in particular via a sweeping element and being conveyed via the at least one cleaning roller unit into a dirty fluid tank device, and dirt fluid being scraped off the at least one cleaning roller unit via at least one scraping element and being conveyed from there into the dirty fluid tank device.
- a surface cleaning machine has all of the operating modes mentioned.
- the at least one cleaning roller unit is arranged to be exchangeable. This makes it possible to adapt to the respective surface to be cleaned.
- a trim made of a textile material or a bristle trim can be used as the trim, depending on the surface to be cleaned.
- Figure 1 is a side view of an embodiment of a
- FIG. 2 shows a perspective representation of the floor cleaning machine according to FIG. 1;
- Figure 3 is a schematic partial representation of a cleaning head
- FIG. 4 shows a perspective partial representation of an exemplary embodiment of a floor cleaning machine according to the invention in the area of a cleaning head;
- FIG. 5 shows the cleaning head according to FIG. 4 in a further perspective view
- FIG. 7 shows a sectional view of the cleaning head according to FIG. 4;
- Figure 8 is a sectional view taken along line 8-8 of Figure 7;
- Figure 9 is the same view as Figure 5 showing locking locations for a dirty fluid tank assembly with the cleaning head and for a support rod assembly with the cleaning head;
- FIG. 10 shows a side sectional view of the cleaning head according to FIG. 9 in the area of a locking point for the holding rod device with the cleaning head outside of a locking position;
- FIG. 11 shows a sectional view according to FIG. 9 of a locking point of the dirty fluid tank device with the cleaning head, the dirty fluid tank device being fixed to the cleaning head;
- Figure 12 is the same view as Figure 10 with the support rod assembly locked to the cleaning head;
- FIG. 13 shows the same view as FIG. 11 when removing the dirty fluid tank device (release of the locking position);
- Figure 14 shows a variant of an embodiment of a pin with a conical tip
- Figure 15 is a view of the cleaning head outside of a locked position for pivotability of the support rod assembly relative to the cleaning head with the shroud removed;
- FIG. 16 shows an enlarged representation of a locking device according to FIG. 15;
- FIG. 17 shows the same view as FIG. 15 in a locked position of the rotatability of the support rod device to the cleaning head;
- FIG. 18 shows an enlarged representation of the locking device in the position according to FIG. 17;
- FIG. 19 shows an exemplary embodiment of a floor cleaning machine according to the invention with different positions of the holding rod device in relation to the cleaning head, showing: in FIG. 19(a) a specific pivoting position (working position) of the holding rod device in relation to the cleaning head; in Figure 19(b) a parking position of the support bar means to the cleaning head; in Figure 19(c) a motion to detach a dirty fluid tank assembly from the cleaning head is indicated; in Figure 19(d) the cleaning head is lifted up from the dirty fluid tank assembly for removal therefrom; in FIG. 19(e) a schematic of the cleaning head being placed on the dirty fluid tank device in order to fix it;
- FIG. 20 shows a sectional view of the cleaning head in the area of a cleaning roller unit
- FIG. 21 is a sectional view of the cleaning roller unit in area A according to FIG. 25;
- FIG. 22 shows a sectional view similar to FIG. 21 in area B according to FIG. 25;
- FIG. 23 shows a sectional view of the floor-cleaning machine according to FIG. 4 in a partial illustration, the pivoting position of the holding rod device being lower than in FIG. 4;
- FIG. 24 shows a bottom view of the cleaning head in the floor cleaning machine according to FIG. 4;
- FIG. 25(a) schematically shows the course of an exemplary embodiment of a curved stripping element on a cleaning roller unit with a first and second roller part;
- FIG. 25(b) schematically shows the course of an exemplary embodiment of a curved scraper element on a roller part
- FIG. 26 schematically shows the course of a further exemplary embodiment of a curved stripping element on a cleaning roller unit with a first and second roller part or on one roller part;
- FIG. 27 schematically shows the course of a further exemplary embodiment of a curved stripping element on a cleaning roller unit with a first and second roller part or on one roller part;
- FIG. 28 shows a perspective illustration of an exemplary embodiment of a combination of stripping element and hair comb according to FIG. 20;
- FIG. 29 shows the combination of FIG. 28 in the direction X according to FIG. 28.
- Figure 30 is a bottom view of the combination of Figure 28 in direction Y of Figure 28.
- An exemplary embodiment of a surface cleaning machine according to the invention is a floor cleaning machine 10.
- the basic structure of the floor cleaning machine 10 and its basic mode of operation are explained with reference to FIGS.
- Hard floors in particular can be cleaned with the floor cleaning machine 10 .
- the floor cleaning machine 10 includes a cleaning head 12.
- the cleaning head 12 is a floor head.
- the cleaning head 12 is placed with a set-up surface 14 on a floor 16 to be cleaned.
- the installation surface 14 is in particular a flat surface.
- At least) one cleaning roller unit 18 is arranged on the cleaning head 12 .
- exactly one cleaning roller unit 18 is provided.
- the cleaning roller unit 18 can comprise a one-piece cleaning roller or a multi-piece cleaning roller, as will be explained in more detail below.
- the cleaning head 12 has a front end 20 and a rear end 22 remote from the front end.
- a longitudinal axis 24 of the cleaning head 12 extends between the front end 20 and the rear end 22.
- the cleaning head 12 has a first lateral side 26 and an opposite second lateral side 28.
- a distance direction between the first lateral side 26 and the second lateral side 28 is transverse and in particular perpendicular to the longitudinal axis 24.
- the cleaning roller unit 18 is arranged in the area of the front end 20 of the cleaning head 12 .
- an operator stands behind the rear end 22 of the cleaning head 12 on the floor 16 to be cleaned.
- the installation surface 14 is defined by the cleaning roller unit 18 and at least one installation element (not shown in FIGS. 1 to 3).
- the cleaning head 12 and thus also the floor cleaning machine 10 are supported via the cleaning roller unit 18 and the at least one positioning element on the floor 16 to be cleaned.
- the cleaning head 12 has a base 30 .
- This base 30 is a main body of the cleaning head 12.
- a detachable dirty fluid tank assembly 32 is seated on the cleaning head 12.
- the dirty fluid tank assembly 32 holds dirty fluid.
- Dirty fluid is understood here as a flowable fluid which can be wet or dry.
- the dirty fluid can include, for example, cleaning liquid with dirt particles or only dust particles.
- the dirty fluid tank device 32 can comprise a number of separate individual parts which can be fixed individually to the base 30 and can be removed from it.
- the dirty fluid tank assembly 32 comprises a unit having one or more separate compartments for dirty fluid.
- a holding rod device 36 is pivoted to the cleaning head 12 via a swivel joint.
- the holding rod device 36 is designed in such a way that a standing operator can hold the floor cleaning machine 10 and guide it over the floor 16 to be cleaned.
- a handle 38 is disposed proximally on the support rod assembly 36 .
- the handle 38 is designed as a closed loop handle.
- Other configurations such as a non-closed loop handle and the like are also possible.
- the support rod assembly 36 is pivoted to the base 30 via the pivot joint.
- a pivot axis 40 ( Figure 2) of the pivot joint of the articulation of the holding rod device 36 to the cleaning head 12 is parallel to the installation surface 14.
- the pivot axis 40 is transverse and in particular perpendicular to the longitudinal axis 24.
- the holding rod device 36 has a (second) longitudinal axis 42 along which the holding rod device 36 extends up to the handle 38 .
- the pivot axis 40 is transverse and in particular perpendicular to this second longitudinal axis 42 of the support rod device 36.
- This rotatability is indicated by the arrow with reference number 44 in FIG.
- the corresponding axis of rotation 41 of this rotatability 44 is, for example, parallel or coaxial to a first longitudinal axis 80 of the support rod device 36 (see below).
- this rotatability 44 is formed by a corresponding design of the holding rod device 36 with a first part 278 and a second part 280 that can be rotated relative to the first part 278 . This is explained in more detail below, in particular with reference to FIGS. 15 to 18.
- the floor cleaning machine 10 includes a drive motor (not shown in FIGS. 1 to 3) by which the cleaning roller unit 18 is driven in rotation about an axis of rotation 46 .
- the cleaning roller unit 18 has a single axis of rotation 46, even if this includes a multi-part cleaning roller.
- the axis of rotation 46 is parallel to the installation surface 14. It is oriented perpendicular to the longitudinal axis 24. It is parallel to the pivot axis 40.
- the pivot axis 40 of the pivotability of the holding rod device 36 on the cleaning head 12 and the axis of rotation 46 are coaxial with one another.
- the drive motor is located on the cleaning head 12, or located on the support rod assembly 36, or located at a transition area between the support rod assembly 36 and the cleaning head 12. He acts on the cleaning roller unit 18 and provides a corresponding torque for rotating the cleaning roller unit.
- the floor cleaning machine 10 may be mains powered or battery powered.
- a battery holder 48 which houses one or more batteries, and particularly rechargeable batteries.
- the batteries can be fixed to the floor cleaning machine 10 or be removable from it.
- the battery holder 48 is arranged on the holding rod device 36 .
- an arrangement on the cleaning head 12 is also possible.
- the floor cleaning machine 10 is designed in particular for the wet cleaning of hard floors.
- a tank device 50 for cleaning liquid is provided.
- the cleaning liquid is, in particular, fresh water, optionally with the addition of a cleaning agent.
- the cleaning roller unit 18 can be moistened directly and/or the floor 16 to be cleaned can be moistened via cleaning liquid from the tank device 50 . As a result, dirt can be removed in an improved manner, and the corresponding dirty fluid is picked up by the cleaning roller unit 18 and delivered to the dirty fluid tank device 32 .
- the tank device 50 is arranged on the support rod device 36 .
- a corresponding supply device for cleaning liquid is provided, which leads from the tank device 50 to the cleaning head 12 in order to be able to correspondingly moisten the cleaning roller unit 18 and/or the floor 16 to be cleaned with cleaning liquid.
- FIG. 3 shows the basic functional structure of the cleaning head 12 and the basic mode of operation is explained with reference to FIG. During a cleaning operation, the cleaning head 12 is placed with its installation surface 14 on the floor 16 to be cleaned (the at least one additional installation element is not shown in FIG. 3). The cleaning roller unit 18 acts on the floor to be cleaned and rotates in a direction of rotation 52.
- the dirty fluid tank device 32 is seated on the base 30 of the cleaning head 12.
- a mouth device 54 which has a mouth opening 56 is arranged on the cleaning head 12 .
- This orifice 56 is in fluid communication with the dirty fluid tank device 32 or is itself an orifice on the dirty fluid tank device 32 .
- the cleaning roller unit 18 rotates, it is rotated past the orifice 56 .
- the dirty fluid tank device 32 has a floor 58 .
- this floor 58 faces the floor 16 to be cleaned.
- the wall 60 is adapted to the cylindrical shape of the corresponding cleaning roller of the cleaning roller unit 18 .
- the cleaning head 12 has a sweeping element 62 which is used to feed coarse dirt to the cleaning roller unit 18 .
- This coarse dirt is indicated by double arrows 64 in FIG.
- the coarse dirt 64 which is made available to the cleaning roller unit 18 via the sweeping element 62 can be taken along by the cleaning roller unit 18 and thrown into the dirt fluid tank device 32 via the outlet opening 56 .
- the sweeping element 62 is mounted on the base 30 or, as shown in Figure 3, mounted on the waste fluid tank assembly 32.
- the cleaning roller unit 18 is moistened with cleaning liquid via a supply device 66 for cleaning liquid. This moistening is indicated in FIG. 3 by the wavy arrows with reference number 68 .
- the moistening takes place downstream of the orifice opening 56 in relation to the direction of rotation 52 .
- a region of the cleaning roller unit 18 which is seated on the floor 16 to be cleaned then, during rotation in the direction of rotation 52 , first passes the orifice 56 and then the corresponding region with the moistening 68 .
- At least one stripping element 70 is provided, which is arranged on the base 30 and is positioned between the orifice opening 56 and the area of humidification 68 .
- the stripping element 70 is movably positioned on the base 30 .
- the stripping element 70 is seated on a holder 72 which is articulated pivotably on the base 30 .
- This holder 72 is spring-loaded (not shown in FIG. 3). The spring loading presses the stripping element 70 against the cleaning roller unit 18.
- the cleaning roller unit 18 has an attachment which is arranged on a corresponding attachment holder.
- the trimming is a textile material, for example. In principle, however, it can also be a bristle trimming.
- the stripping element 70 is arranged in such a way that it touches the trimming and preferably dips into the trimming.
- the spring loading of the movable holder 72 accordingly ensures that it is pressed or pressed in.
- the wiping element 70 forms an opening wall of the opening device 54 for the opening 56. In particular, the wiping element 70 separates the area of moistening 68 from the opening 56.
- the stripping element 70 acts on the cleaning roller unit 18 and on the bristles in such a way that dirty fluid is detached from the corresponding cleaning roller (and in particular moist dirty fluid is detached) and conveyed via the orifice opening 56 into the dirty fluid tank device 32 .
- This dirty fluid 74 detached by the stripping element 70 can also contain coarse dirt particles which were not conveyed directly into the dirty fluid tank device 32 via the outlet opening 56 .
- the floor cleaning machine 10 with the design according to FIG. 3 has a sweeping function, through which coarse dirt (and also dry coarse dirt) can be swept from the floor 16 to be cleaned. It has a wiping function, by means of which the floor 16 to be cleaned can be moistened via the moistening device 68 and wet dirty fluid can be picked up and detached via the stripping element 70 and conveyed into the dirty fluid tank device 32 .
- the cleaning roller unit 18 is positioned on the cleaning head 12 in particular so that it can be replaced. As a result, for example, the cleaning roller unit 18 or a cleaning roller can be cleaned easily. This is also an adaptation to the special cleaning process possible. If, for example, a cleaning roller of the cleaning roller unit 18 has a textile lining such as a microfiber lining, wet cleaning and sweeping cleaning can be carried out at the same time. However, it is also possible, for example, for a cleaning roller with bristles to be used as the cleaning roller in order to carry out a pure sweeping process. (Moistening of the cleaning roller unit 18 or the floor 16 to be cleaned is particularly switched off during the pure sweeping process.)
- the dirty fluid tank device 32 in particular with the sweeping element 62 fixed thereto, is arranged floating relative to the base 30 in order, for example, to be able to position the sweeping element 62 in the same position as the cleaning roller unit 18, regardless of the trim length of the cleaning roller unit 18.
- the basic mode of operation of the floor cleaning machine 10, as explained with reference to FIG. 3, is also possible for a cleaning head 12 without a holding rod device 36 and in particular for a self-propelled and self-steering cleaning machine ("cleaning robot").
- cleaning robot a self-propelled and self-steering cleaning machine
- the battery holder 48 and the tank device for cleaning liquid 50 are then arranged in the cleaning head 12 itself.
- dirty fluid is conveyed via the cleaning roller unit 18 into 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.
- the dirty fluid that is in the dirty fluid tank device 32 it is also possible for the dirty fluid that is in the dirty fluid tank device 32 to be sucked out.
- a corresponding suction unit device and an associated additional dirty fluid tank are arranged on the holding rod device 36 . Further aspects of the floor cleaning machine 10 and advantageous configurations are described below with reference to FIGS.
- support rod assembly 36 includes a first portion 76 and a second portion 78 .
- the first area 76 is arranged at an angle to the second area 78 .
- the first portion 76 is a distal portion, and the second portion 78 is seated with the handle 38 and thus also the proximal portion.
- a control panel with a plurality of control elements is arranged on the handle 38 or on the second area 78 .
- the tank device 50 for cleaning liquid is arranged on the second area 78 .
- control panel includes a switch that can be used to switch whether the cleaning roller unit 18 and/or the floor 16 to be cleaned is moistened with cleaning liquid from the tank device 50 for cleaning liquid 50 .
- this makes it possible to carry out a dry sweeping operation or a wet mopping operation.
- the first area 76 extends in a first longitudinal axis 80 (compare also Figure 1), and the second area 78 along the second longitudinal axis 42.
- the first area 76 and the second area 78 lie at an obtuse angle 82 ( Figure 1) to one another, which is in the range between 120° and 170°.
- this obtuse angle 82 is approximately 145°.
- the first area 76 and the second area 78 are continuously connected to each other.
- the support rod device 36 is articulated to the cleaning head 12 and thereby to the base 30 by means of a pivot joint 84 via the first region 76 .
- the pivot axis 40 of the pivot joint 84 coincides with the axis of rotation 46 of rotation of the cleaning roller assembly 18 .
- the swivel joint 84 is designed as an orbital joint. It comprises a web guiding device 86 which is seated on the cleaning head 12 and on the base 30 in a rotationally fixed manner. This path guiding device 86 comprises a circular path section 88. A center of the circular path section 88 lies on the pivot axis 40/rotational axis 46.
- a counter-device 90 which is supported on the web-guiding device 86 , is connected to the first region 76 in a rotationally fixed manner.
- the counter-device 90 is slidably guided on the circular path section 88 of the path-guiding device 86; there is an orbital guidance of the counter-device 90 on the circular path section 88 of the path-guiding device 86 .
- At least three support points are provided for guiding the opposing device 90 on the web guiding device 86 .
- the circular path section 88 is arranged with a partial area behind the cleaning roller unit 18 in relation to the longitudinal axis 24 of the cleaning head 12 . Relative to a height axis 92, which is perpendicular to the longitudinal axis 24 and perpendicular to the installation surface 14, the circular path section 88 is arranged with a partial area above the cleaning roller unit 18.
- the circular path section 88 is designed, for example, at least approximately as a quadrant section, which to a certain extent encompasses the cleaning roller unit 18 .
- the pivot joint is positioned midway between the first lateral side 26 and the second lateral side 28 on the base 30 . In particular, it is arranged symmetrically on the cleaning head 12 . It lies on a central plane 94 (compare FIG. 2), which lies in the middle between the first lateral side 26 and the second lateral side 28 and is oriented perpendicularly to the axis of rotation 46 or pivot axis 40 .
- the center plane 94 is also oriented perpendicular to the installation area 14 .
- a drive motor 98 which is in particular an electric motor, is provided for driving the cleaning roller unit 18 in the rotational movement of the axis of rotation 46 with the direction of rotation 52.
- This is non-rotatably connected to the support rod device 36 so that it is also pivoted about the pivot axis 40 during a pivoting movement of the support rod device 36 .
- the drive motor 98 is positioned on the support rod assembly 36 and is particularly positioned on the first region 76 .
- the first portion 76 of the support rod assembly 36 includes a housing 100 that houses the drive motor 98 .
- a battery holder 48' is on the first area 76 or on a transition between the first area 76 and the second region 78 is arranged. (In the embodiment shown in Figures 1 and 2, the battery holder 48 is arranged on the second area 78.)
- a free space 102 (compare FIG. 5) is formed on the cleaning head 12 and thereby on the base 30 , which is in the middle between the first lateral side 26 and the second lateral side 28 and lies on the central plane 94 .
- This free space 102 forms a pivoting space in which the holding rod device 36 can be moved, with the first area 76 then being able to be moved in this free space 102 in particular.
- the clearance 102 is open to the rear end 22 .
- the housing 100 with the drive motor 98 can be moved in the free space 102 .
- the free space 102 results in a large pivoting angle range for the pivotability of the support rod device 36 about the pivot axis 40 relative to the base 30.
- the floor cleaning machine 10 has a transmission device 104 (FIG. 7) which serves to transmit a torque from the drive motor 98, which is positioned at a distance from the cleaning roller unit 18, to the cleaning roller unit 18.
- the transmission device 104 also includes a reduction gear, which is used to reduce the speed, so that a speed of the cleaning roller unit 18 when rotating about the axis of rotation 46 is lower than a drive speed of the drive motor 98.
- the transmission device 104 includes, for example, a belt transmission and the speed reduction gear.
- the cleaning roller unit 18 is or includes a roller mount 106.
- the roller mount 106 in turn includes a shaft 108 which is connected to the transmission device 104 in a torque-effective manner.
- the shaft 108 rotates about the axis of rotation 46 when driven accordingly by the drive motor 98.
- shaft 108 (see FIG. 6) includes a first shaft portion 110, a second shaft portion 112, and a center portion 114 connected to first shaft portion 110 and second shaft portion 112.
- the shaft 108 with the first shaft part 110, the second shaft part 112 and the middle part 114 forms a unitary shaft with a single axis of rotation, namely the axis of rotation 46.
- the middle part 114 lies centrally between the first lateral side 26 and the second lateral side 28 and lies at the middle plane 94.
- the first shaft portion 110 receives a first roller portion 116 and the second shaft portion 112 receives a second roller portion 118 of the cleaning roller unit 18.
- the first barrel portion 116 and the second barrel portion 118 are separate units, but rotate about the same axis of rotation 46 when seated on the shaft 108 .
- the first roller portion 116 which is seated on the first shaft portion 110, extends to the first lateral side 26, or almost to it.
- the second roller portion 118 which is seated on the second shaft portion 112, extends to the second lateral side 28, or almost to it.
- the central portion 114 of the shaft 108 is roller-free.
- the transmission device 104 is coupled to it in a torque-effective manner.
- the first roller part 116 and the second roller part 118 are each pushed onto the associated shaft part 110 or 112 from the outside and latched accordingly with the associated shaft part 110 or 112 in order to obtain a non-rotatable connection.
- the central part 114 of the shaft 108 and thus the roller mount 106 and the swivel joint 84 are aligned. They lie on the center plane 94 and are in particular each formed mirror-symmetrically to the center plane 94 .
- the cleaning head 12 has (at least) one support element 120 .
- exactly one support element 120 is provided (FIG. 7, FIG. 19(d), FIG. 23, 24).
- the support element 120 sits at a distance from the cleaning roller unit 18 and defines the installation surface 14 with it.
- the support element 120 sits on the base 30. Even if the dirty fluid tank device 32 is removed, the cleaning head 12 with the cleaning roller unit 18 and the support element 120 can be placed on a floor 16 to be set up.
- the support member 120 includes a post 122 on which a roller or slider 124 is seated.
- the roller or the slider 124 is used for support on the floor 16 to be cleaned.
- the roller or the slider 124 for example a skid being provided, is guided over the floor 16 to be cleaned when the floor cleaning machine 10 is guided.
- the base 30 has an underside 126 facing the dirty fluid tank device 32 .
- the post 122 projects transversely and in particular perpendicularly from this underside 126 in the direction of the installation surface 14 .
- the support element 120 lies on the center plane 94. If a plurality of support elements are provided, then these are in particular arranged in a row which lies on the center plane 94 .
- the shape and dimensions of the dirty fluid tank device 32 are adapted to the base 30 .
- the dirty fluid tank device 32 has a bottom 127 and a top 128 .
- the top 128 of the dirty fluid tank device 32 faces the bottom 126 of the base 30 .
- the bottom 127 of the dirty fluid tank device 32 lies on the bottom 58 and faces away from the top 128 .
- the wall 60 and another wall 130 which closes the dirty fluid tank device 32 with an interior space for receiving dirty fluid.
- the wall 60 of the dirty fluid tank device 32 on which the orifice 56 is seated has a cutout 132 (compare FIG. 6) which is adapted to the central part 114 of the shaft 108 .
- the central portion 114 is at least partially seated within the cutout 132 of the dirty fluid tank assembly 32 with free rotation.
- the mouth opening 56 of the mouth device 54 comprises, in particular, a first opening part 134 and a second opening part 136.
- the first opening part 134 is associated with the first roller part 116 and the second opening part 136 is associated with the second roller part 118 .
- the dirty fluid tank device 32 has a first chamber 138 and a second chamber 140 .
- the first opening part 134 is formed and on the second chamber 140 the second opening part 136 is formed. Dirty fluid is coupled directly into the first chamber 138 via the first opening portion 134 and dirty fluid is coupled directly into the second chamber 140 via the second opening portion 136 .
- the two chambers 138 and 140 can be separated from one another in a fluid-tight manner or can be fluidly connected to one another, so that dirty fluid can be evenly distributed in the dirty fluid tank device 32 .
- the dirty fluid tank device 32 has a cover 142 which at least partially forms the upper side 128 .
- This cover 142 is at a distance from the base 58.
- the cover 142 can be removed when the dirty fluid tank device 32 has been removed from the cleaning head 12 in order to be able to empty the dirty fluid tank device 32 .
- the kick tab 34 is arranged on the wall 130 of the dirty fluid tank device 32 . It is arranged in such a way that, when the dirty fluid tank device 32 is fixed to the base 30 , it is at a distance from the installation surface 14 .
- the kick tab 34 is arranged in alignment with the free space 102 . It is a continuation of the space 102 from the rear end 22 away. she is arranged in such a way that it does not impede the corresponding pivoting space of the holding rod device 36 in the free space 102 .
- the step strap 34 is located on the center plane 94 and is in particular arranged and formed mirror-symmetrically to this.
- the kick strap 34 includes a panel 144 having raised edge walls 146 (see Figure 5).
- the edge walls 146 are rounded in this case.
- the kick strap 34 has a width (in a direction parallel to the pivot axis 40 or rotation axis 46) which is at least as wide as typical dimensions of a foot with shoes.
- An operator may place his foot on the step tab 34 and then, by applying appropriate force, lift the cleaning head 12 to detach the dirty fluid tank assembly 32 from the base 30 . This is described in more detail below.
- the raised, rounded edge walls 146 of the step strap 134 prevent an operator's foot from slipping off to the side. Sharp edges on the plate 144 are avoided.
- spaced webs or grooves are arranged on the plate 144, which are intended to prevent an operator's foot from slipping off.
- the step strap 34 is arranged in alignment as a continuation of the free space 102 . It is aligned in relation to the longitudinal axis 24 of the cleaning head 12 with the swivel joint 84 and also aligned with the central part 114 of the shaft 108 .
- the dirty fluid tank device 32 has a removal direction 148 (FIG. 6) away from the base 30 .
- the removal direction 148 leads away from the underside 126 of the base 30 in the direction of the installation surface 14.
- the dirty fluid tank device 32 can be removed from the cleaning head 12 in such a way that, for example, by lifting the cleaning head 12 and pressing the dirty fluid tank device 32 (for example on the foot strap 34) in the direction of the removal direction 148, or by pulling the dirty fluid tank device 32 away from the base 30 in the removal direction 148 can be loosened and removed.
- a space 150 is formed in the cleaning head 12, delimited by the underside 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.
- a continuous recess 152 (FIGS. 7, 19(d), 24) is formed on the dirty fluid tank device 32, which is assigned to the support element 120.
- This continuous recess 152 is open at the top 128 and at the bottom 127 .
- the continuous recess 152 is closed at the side, so that it is closed in a fluid-tight manner.
- the continuous recess 152 is dimensioned in such a way that the support element 120 can penetrate through and correspondingly also emerge when the dirty fluid tank device 32 is removed from the base 30 .
- the continuous recess 152 is closed on all sides.
- the continuous recess 152 it is also possible for the continuous recess 152 to be open toward the rear end 22 .
- the continuous recess 152 has the shape of a (hollow) cylinder.
- the continuous recess 152 is arranged in line with the central part 114 of the shaft 108, the pivot joint 84 and the foot strap 34, corresponding to the aligned orientation of the support element 120 in relation to the longitudinal axis 24.
- the dirty fluid tank assembly 32 is suspended from the base 30 .
- a plurality of holders 154 (compare FIGS. 11 and 13) are provided, which are seated on the base 30 and protrude from its underside 126 in the direction of the installation surface 14 .
- a first bracket and a second spaced bracket are provided. These are as described below- formed and in particular formed the same.
- the first holder and the second holder are preferably arranged mirror-symmetrically to the center plane 94 and the free space 102 lies between them.
- a first location 156 is indicated at which the first holder sits and a second location 158 is indicated at which the second holder sits. As mentioned, these are the attachment points for the dirty fluid tank device 32 on the base 30.
- the holders 154 are designed as holding domes or holding mushrooms.
- the holder 154 and the associated receptacle 160 form a holder-receptacle combination 162, which is designed as a snap-in connection device.
- a corresponding holding position or locking position is shown in FIG.
- the holder 154 includes a first element 164 which corresponds to a second element 166 of the receptacle 160 on the dirty fluid tank device 32 .
- the first element 164 has a receiving area 168 for the second element 166.
- This receiving area 168 is, for example, cylindrical.
- the receiving area 168 of the first element 164 is delimited by a bead 170 .
- the bead 170 has a diameter (in a direction transverse to the elevation axis 92) which is larger than the corresponding diameter of the receiving area 168.
- the ridge 170 is disposed on the first member 164 as an annular region. It has a first surface area 172 which faces the receiving area 168 .
- a second surface area 174 which faces away from the receiving area 168 , adjoins the first surface area 172 .
- the bead 170 is tapered at the first surface area 172 away from the receiving area 168 . It is also conically formed on the second surface area 174 with an inclination toward the receiving area 168 .
- An inclined plane is formed by the first surface region 172 which, as will be explained in more detail below, requires an application of force in order to detach the second element 166 from the first element 164 .
- An inclined plane is also formed by the second surface area 174 , which requires an expenditure of force in order to connect the second element 166 to the first element 164 .
- the cone angle of the first surface portion 172 is greater than the cone angle of the second surface portion 174 (see Figure 11).
- the first cone angle for the first surface area 172 is denoted by the reference number 176 there.
- the second cone angle for the second surface area 174 is denoted by 178 .
- the second cone angle 178 is less than the first cone angle 176. This means that the force required to loosen and remove the dirty fluid tank assembly 32 from the base 30 is larger than for inserting (for fixing) the dirty fluid tank device 32 on the base 30.
- the second element 166 on the receptacle 160 of the dirty fluid tank device 32 is designed as a spreading element which has at least two and preferably at least three tabs which can be moved transversely to the vertical axis 92 (increasing the distance).
- the second element 166 as a spreading element is pushed onto the holder 154 .
- the second element 166 of the second surface area 174 is spread apart, increasing the distance between the tabs, until the receptacle area 168 is reached.
- the tabs of the spreading element 166 are arranged in particular in a resilient manner and snap back.
- the bead 170 serves as a barrier which prevents the dirty fluid tank assembly 32 from falling off the base 30 .
- a latching connection is established via the holder-receiving combination 162 .
- an operator exerts force on the dirty fluid tank device 32 and moves the second element (the spreader element) over the bead 170 and thereby over the first surface area 172.
- a corresponding amount of force is required to spread the second element 166 (the spreader element) open. necessary to expand the cross section accordingly so that the bead 170 can be traversed by the second element 166.
- FIG. 1 A corresponding intermediate state after being driven over is shown in FIG. There the locking connection is canceled.
- the spreading element 166 das second element 166) has passed the bead 170 and is outside of the receiving area 168.
- the receptacles 160 on the dirty fluid tank device 32 are open at the top 128 in order to allow the corresponding holder 154 to be immersed.
- the receptacle has an extension 180 in the shape of a hollow truncated cone towards the upper side 128 .
- This extension 180 forms an insertion and centering aid for the holder 154, which is in the form of a pin, in the associated receptacle 160.
- the dirty fluid tank assembly 32 When the dirty fluid tank assembly 32 is held on the base 30 via the holder-receiver combination 162 (at locations 156, 158), then the dirty fluid tank assembly 32 is movably mounted (in a direction/opposite direction parallel to the elevation axis 92) and is thereby supported in a floating manner .
- the weight of the floor cleaning machine 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 device 32 has no support function in this regard.
- the dirty fluid tank device 32 is movably mounted (floating) transversely and in particular perpendicularly to the installation surface 14 .
- the holding rod device 36 has a pivot angle range of pivot mobility relative to the cleaning head 12 which lies between a lower limit and an upper limit.
- a pivot angle 182 (compare Figure 19(a)) is in particular quantitative as an angle between the second longitudinal axis 42 of the support rod device 36 and a plane 184 parallel to the installation surface 14.
- a minimum pan angle 182, i.e. the lower limit, is 0° or greater than 0°.
- the lower limit is less than 50° and preferably less than 40° and particularly preferably less than 30°.
- the lower limit is predetermined by the support rod device 36 resting against an underside which delimits the free space 102 (cf. FIG. 9).
- the lower limit can be approximately 0° and can in particular be less than 10° and preferably less than 5°.
- the swing angle range has an upper limit (Figure 19(b)).
- the upper limit of the pivoting angle 182 is specified as the detent position (FIG. 19). In particular, it is in the range between 80° and 120° of the pivoting angle 182. In a preferred exemplary embodiment, it is approximately 90° (FIG. 19(b)).
- the upper limit is such that a parking position with a latching position relative to the cleaning head 12 is provided for the retaining rod device 36, in which case pivoting relative to the cleaning head 12 is blocked in the sense that greater effort is required to pivot the retaining rod device 36 to allow the pivot joint 84 to rotate about the pivot axis 40 again.
- the holder-receptacle combination 162 has been described as having a holder 154 which is fixedly connected to the base 30 and a receptacle 160 which is arranged on the dirty fluid tank device 32 .
- the holder 154 is rod-shaped and the receptacle 160 is an opening.
- a kinematic reversal is also possible, in which a rod-shaped element is arranged on the dirty fluid tank device 32 and a corresponding receptacle in the form of an opening on the base 30.
- a locking device 186 (FIGS. 10, 12) is provided for establishing a parking position 185 (FIG. 19(b)).
- the locking device 186 comprises one and in particular at least two and preferably exactly two (FIGS. 10, 12).
- the pin-immersion opening combinations 188 are arranged in the area of the pivot joint 84 .
- a first location 190 and a second location 192 are shown at which respective pin and dip hole combinations 188 are positioned.
- the first point 190 and the second point 192 are mirror-symmetrical to the center plane 94.
- the pin-immersion opening combination 188 each includes an immersion opening 194 which is arranged on the cleaning head 12 and in particular on the base 30 in a rotational manner with respect to the web guide device 86 .
- a pin 196 is provided as a counter-element to the corresponding immersion opening 194 , which is non-rotatably connected to the holding rod device 36 and can be pivoted with it about the pivot axis 40 relative to the cleaning head 12 .
- the pin 196 is seated on a guide 198 and is linearly translatable along a translation axis 200.
- the translation axis 200 is movable with the pivotal movement of the support rod assembly 36 relative to the cleaning head 12. It is oriented transversely to a circumference of circular path section 88 .
- the pin 196 is spring-loaded via a spring device 202, with a spring force of the spring device 202 tending to press the pin 196 in the direction of the circumference of the circular path section 88.
- the spring force of the spring device 202 acts on the cleaning head 12 .
- the pin 196 has a bead 204 ( Figure 10) which is arranged in a ring shape.
- the guide 198 has an annular stop 206 for the bead 204 .
- a stop for the linear displaceability of the pin 196 on the guide 198 is formed by the bead 204 resting against the stop 206 (FIG. 10).
- a basic position of the pin 196 is such that the spring device 202 presses the pin 196 to the circumference of the circular path section 88 until the bead 204 rests against the stop 206 (FIG. 10). This basic position is present when the pin 196 has not entered the immersion opening 194 .
- the basic position is in turn present when the parking position 185 of the holding rod device 36 and the cleaning head 12 has not been reached, ie when the upper limit of the pivoting angle 182 has not been reached. See FIG. 10, where the pin 196 is not immersed in the immersion opening 194. In this basic position of the pin 196 outside the immersion opening 194, the free pivoting of the holding rod device 36 relative to the cleaning head 12 about the pivot axis 40 is ensured.
- the respective immersion opening 194 is formed on a block element 208 .
- the block element 208 includes the immersion opening 194 as a recess or bore.
- a first inclined plane 210 is arranged or formed on the block element 208 outside the immersion opening 194 . This rises from the circular path section 88 . It is located at the end of the circular path section 88 and at the first inclined plane 210 the distance to the pivot axis 40 increases.
- the first inclined plane 210 is used to insert the pin 196 into the immersion opening 194 while displacing the pin 196 away from the stop 206 with a corresponding exertion of force against the spring force of the spring device 202 . This effort must be applied by an operator.
- the pin 196 has a first contact surface 212 which is formed on a front end of the pin 196 .
- the first contact surface 212 is adapted to the first inclined plane 210 .
- the immersion opening 194 formed in the block element 208 has a wall formed as a second inclined plane 214 .
- the pin 196 is guided along the circular path section 88 while increasing the pivoting angle 182 and then over the first inclined plane 210 into the immersion opening 194.
- the second inclined plane 214 serves to guide the pin 196 out of the immersion opening 194 by reducing the pivoting angle 182 starting from the upper limit.
- the pin 196 has a second contact surface 216 which is adapted to the second inclined plane 214 .
- the second contact surface 216 is guided in contact with the second inclined plane 214 along the second inclined plane 214 (with the pivoting angle 182 being reduced). To do this, the spring force of the spring device 202 must be overcome.
- the first incline 210 has a smaller angle than the second incline 214.
- the force required to release the latch by extending the pin 196 out of the plunger opening 194 is greater than the force required , in order to bring the pin 196 into the immersion opening 194 via the second inclined plane 214 and to establish the locking and thereby to reach the parking position 185.
- FIG. 14 An alternative exemplary embodiment of a pin 196' (FIG. 14) has a contact surface 197 at a tip which is of conical design.
- the pin is spherically shaped at the tip (indicated in broken lines in Figure 14).
- the pin 196 or the pin 196' is made in particular from a metallic material.
- a tip 218 preferably rests on this circular path section 88 between the first contact surface 212 and the second contact surface 216 .
- a circular path section 88 is also possible for a circular path section 88 to be provided which is separate from this circular path section 88 for the counter-device 90 but is concentric with the pivot axis 40 .
- FIG. 10 shows an intermediate position shortly before the locking position is reached.
- a "work" pivot position is shown in Figure 19(a).
- the pivot angle 182 is between the lower limit and the upper limit.
- the floor 16 to be cleaned can be worked on by the floor cleaning machine 10 in order to carry out a cleaning process.
- An operator adapts the swivel angle 182 to his height. If a piece of furniture or the like is to be driven under, the pivoting angle 182 is reduced.
- the operator guides the cleaning head 12 over the floor 16 to be cleaned using the holding rod device 36 with the adjusted swivel angle 182.
- the cleaning roller unit 18 rotates about the axis of rotation 46. Due to the direction of rotation 52, the cleaning head 12 and thus the floor cleaning machine 10 experience a propulsion.
- the support rod device 36 is connected directly to the roller mount 106 and thus to the cleaning roller unit 18 .
- the cleaning roller unit 18 With a pivoting movement of the holding rod device 36 about the pivot axis 40, the cleaning roller unit 18 is also pivoted. If this is supported on the floor 16 to be cleaned, then it rolls off on the floor 16 . This movement is superimposed on the rotation of the cleaning roller unit 18 about the axis of rotation 46 and has no negative effect on the cleaning result or the like. Due to the rotation of the cleaning roller unit 18, the angular range through which the cleaning roller unit 18 runs in the same time unit as during a pivoting movement is very much larger.
- the support rod device 36 is directly connected to the cleaning roller unit 18 and its weight acts directly on the cleaning roller unit 18.
- the weight of the support rod device 36 presses the cleaning roller unit 18 with the roller parts 116, 118 against the floor 16 to be cleaned.
- the support rod device 36 acts by its own weight a pressing force of the cleaning roller unit 18 on the floor 16 to be cleaned. This improves the cleaning effect; the mechanical action of the cleaning roller unit 18 on the floor 16 to be cleaned is improved.
- the ability of the floor cleaning machine 10 to remove dirt is improved.
- the described design of the swivel joint 84 as an orbital swivel joint results in a large swivel range between the lower limit and the upper limit.
- the operator increases the swivel angle 182 until the parking position 185 is reached (FIG. 19(b)) and the holding rod device 36 is locked to the cleaning head 12 via the locking device 186 .
- the support rod device 36 cannot “fall down” of its own accord (because of its own weight), with the pivoting angle 182 decreasing in the direction of the lower limit.
- the floor cleaning machine 10 is parked, for example for storage.
- a corresponding cleaning station or parking station (not shown in the figures).
- the dirty fluid tank device 32 can also be emptied in the ground station.
- the dirty fluid tank device 32 can also be easily removed from the cleaning head 12 (FIG. 19(c), (d)).
- the operator When the cleaning head 12 is properly positioned on the floor 16 to be cleaned, the operator exerts a force on the foot strap 34 in the direction of the floor 16, in particular via one foot. This force is indicated by reference number 220 in FIG. He then applies a torque to the support rod assembly 36 which exceeds the upper limit and continues to tend to increase the pivot angle 182 . This torque is applied in a manner that is intended to pivot the support rod assembly 36 toward the floor 16 but away from the rear end 22 of the cleaning head 12 toward the front end 20 .
- This torque application occurs in the park position 185 where the support rod assembly 36 is secured to the base 30 by the latch assembly 186 is locked. If necessary, the swivel angle 182 can be increased somewhat by play in the play/immersion opening combinations 188 . When this play is exhausted, the cleaning head 12, which is then in particular still supported on the floor 16 via the cleaning roller unit 18, rotates relative to the dirty fluid tank device 32. The base 30 is raised relative to the dirty fluid tank device 32.
- the dirty fluid tank device 32 remains on the floor 16 as a result of the operator intervention on the foot strap 34 .
- An operator has fixed the dirty fluid tank device 32 on the floor 16 via the force 220 .
- the cleaning head 12 it is also possible for the cleaning head 12 to be removed from the dirty fluid tank device 32 by pulling it upwards, with an operator fixing the dirty fluid tank device 32 to the floor 16 by exerting force on the foot strap 34 .
- FIG. 19(e) shows a situation in which the cleaning head 12 is placed back onto the dirty fluid tank device 32, ie in which the dirty fluid tank device 32 is fixed to the cleaning head 12.
- the dirty fluid tank device 32 is placed on the floor 16 . If necessary, an operator fixes the dirty fluid tank device 32 to the floor 16 by exerting force on the foot strap 34.
- the cleaning head 12 is then placed from above onto the dirty fluid tank device 32 in such a way that the corresponding holder 154 is immersed in the associated receptacle 60 on the dirty fluid tank device 32 until it latches (and then correspondingly the respective second element 166 in the associated receiving area 168 of the first element 164).
- the cleaning head 12 is preferably set down with the holding rod device 36 in a parking position 185 relative to the cleaning head 12, i.e. with the holding rod device 36 being locked on the cleaning head 12 by the locking device 186.
- an operator can remove the dirty fluid tank device 32 from the cleaning head 12 and insert the dirty fluid tank device 32 in the cleaning head 12 hands-free, i.e. he does not have to touch the dirty fluid tank device 32 for this purpose.
- he can carry out the corresponding processes by touching and Perform hold of the support rod assembly 36. He doesn't have to bend down or bend his knees.
- the stripping element 70 is movably arranged on the cleaning head 12 and on the base 30 via the holder 72 .
- the holder 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 at the rear end 224; the base 222 has a first portion 228 and a second portion 230, with the first portion 228 having the rear end 224 and the second portion 230 having the front end 226.
- the holder 72 is held pivotably on the base 30 of the cleaning head 2 via the first area 228 .
- the second area 230 carries the stripping element 70 and a comb element 232.
- stub shafts 234 Arranged on the first region 228 are stub shafts 234 which protrude laterally outwards. Shaft stubs 234 are provided opposite one another and are aligned in alignment. A pivot axis 236 is defined by the stub shafts 234 . When the holder 72 is fixed to the base 30, the pivot axis 236 is parallel to the pivot axis 40 or parallel to the axis of rotation 46. It is parallel to the installation surface 14.
- One embodiment provides for a continuous stripping element 70 to be present for the cleaning roller unit 18, which acts both on the first roller part 116 and on the second roller part 118 (FIG. 25(a)). In particular, no recess or the like is provided for the central part 114 .
- the stripping element 70 extends continuously between a first front end 238 and an opposite second front end 240.
- the stripping element 70 is arranged or formed as a web on the second region 230 . In particular, this web is integrally connected to the second region 230, that is, integrally connected to the holder 72.
- the comb element 232 is also seated on the holder 72. It acts on the cleaning roller unit 18 and serves to collect hair; the comb element 232 is a hair comb.
- the comb element 232 comprises at least one row 242 and in particular a plurality of rows 242 of pins 244. Adjacent pins 244 are spaced apart from one another. A pin dips into a stocking 246 (compare, for example, FIG. 20) of the cleaning roller unit 18 in order, so to speak, to “filter out” hair from the cleaning roller unit 18.
- the comb element 232 is arranged downstream of the stripping element 70 .
- a portion of the cleaning roller unit 18 which rotates in the direction of rotation 52 starting from the base 16 first passes the stripping element 70 and then the comb element 232 . This results in a space-optimized arrangement.
- the comb element 232 (the rows 242) are arranged on the second region 230 between the front end 226 and the stripping element 70 (compare FIG. 30).
- the comb element 232 extends over a shorter transverse length than the stripping element 70, i.e. a distance between the outer ends of the comb element 232 is smaller than a distance between the front ends 238 and 240 of the stripping element 70 ( Figure 30).
- the holder 72 is pivotally supported on the base 30 . It is spring-loaded in order to press the stripping element 70 and the comb element 232 into the trimming 246 .
- a corresponding spring device is provided, which is arranged, for example, in the area of the shaft stub 234 on the corresponding pivot bearing 250 . This is indicated by reference number 252 in FIG.
- a corresponding spiral spring of the spring device is supported on the base 30 and on the second area of the holder 72 in order to press it against the cleaning roller unit 18 .
- the stripping element 70 is arranged as a web 254 on the second area 30 .
- This web 254 has a first flank 256 which faces the mouth opening 56 . It has an opposite second flank 258 which faces away from the mouth opening 56 (FIG. 20).
- the second flank 258 faces the comb element 232 .
- An edge 260 lies between the first flank 256 and the second flank 258.
- a contact line 262 (FIG. 25) is formed by the edge 260.
- the web 254 of the stripping element 70 has a triangular shape in cross section over the first flank 256 and the second flank 258 (compare FIG. 20).
- the contact line 262 has a finite width.
- the contact line 262 lies in the edging 246 (compare FIG. 20) or at least rests against the edging 246 . Via the contact line 262, the stripping element 70 rests on or dips into the trimming 246.
- the stripping element 70 is designed as a guide element for dirty fluid on the cleaning roller unit 18 .
- the design is such that dirt fluid is not only detached from the cleaning roller unit 18 (from the trimming 246) via the wiping element 70, but is also guided in a defined manner to a central region 264.
- This middle area 264 lies on the cleaning roller unit 18 and on the scraper element 70 . Starting from the middle area 264 , dirt fluid (to a large extent) is coupled into the orifice opening 56 .
- the central area 264 lies at the central plane 94.
- the stripping element 70 is curved.
- the contact line 262 has a first length Li (arc length) between the first face end 238 and the second face end 240 .
- a distance D between the first front end 238 and the second front end 240, a distance direction for the distance D being parallel to the pivot axis 236 or parallel to the pivot axis 40 or parallel to the rotation axis 46, is smaller than this length Li .
- the cleaning roller unit 18 (as a combination of the first cleaning roller 116 and the second cleaning roller 118 with spacing in between) has a second length in the spacing direction (i.e. parallel to the axis of rotation 46).
- the curvature of the stripping element 70 at the contact line 262 can be two-dimensional or three-dimensional in the sense that a mathematical Curve that describes the course of the contact line 262 and is a curved curve, can be a flat curve (two-dimensional curvature) or can be a space curve (three-dimensional curvature).
- the corresponding curve which mathematically describes the course of the contact line 262
- has a first curvature in the sense of a differential geometric curvature
- the first curvature is negative, ie the corresponding mathematical curve describing the course of the contact line 262 is concave, or the first curvature and the second curvature are both negative and the corresponding curve is a concave curve.
- a discharge area for dirty fluid from the cleaning roller unit 18 into the dirty fluid tank device 32 is formed by the mouth device 54 .
- the contact line 262 is concave towards this dispensing area, ie towards the mouth opening 56 . This concave formation is on the first flank 256.
- a convex configuration is present on the second flank 258, ie facing away from the dispensing area (the orifice opening 56).
- a corresponding concave portion 266 and convex portion 268 are shown in FIG.
- the line of contact 262 has the shape of a segment of a circular arc.
- the corresponding mathematical curve which describes the course of the contact line 262, has a constant curvature.
- a first curvature can be provided, which is constant, and if the contact line 262 can be described by a space curve, a constant second curvature can be present.
- a radius of curvature R lies in the range between 2I_2 and 6L2 (2I_2 ⁇ R ⁇ 6L2).
- the stripping element 70 has an apex 270 across the contact line 262, which in one embodiment (cf. FIG. 25(a)) is arranged on the central plane 94.
- the course of the mathematical curve, which describes the course of the contact line 262, can be described in cylindrical coordinates.
- a projection of the contact line 262 onto an (imaginary) cylinder 272 ( Figure 25(a)) having a cylinder axis 274 can be viewed.
- the contact line 262 is mirror-symmetrical with respect to the apex 270 or the center plane 94 (FIG. 25(a)).
- a polar angle cp varies along the curve.
- point B there is a maximum polar angle cps , and starting from this vertex 270 the polar angle cps decreases. It decreases in the same way towards the front ends 238, 240 and in particular continuously. In particular, there is also a monotonic decrease.
- Figure 21 there is shown a section through the cleaning head 12 at point A of Figure 25, and in Figure 22 a section at point B (i.e. at the apex 270).
- the orifice opening 56 has a third length L3 along the scraping element 70, which is smaller than the first length Li the delivery area (towards the orifice opening 56) is also transported on the cleaning roller unit 18. A smaller mouth opening 56 is then sufficient. This in turn reduces the area of soiling on the floor cleaning machine 10 .
- the discharge area can be made smaller in relation to the distance direction parallel to the axis of rotation 46, i.e. the orifice opening 56 can be made with a smaller length L3 than, for example, with a straight scraping element 70.
- a smaller transfer area for dirty fluid to the dirty fluid tank device 32 can thus be realized. Dirty fluid delivery is simplified and device contamination is reduced.
- any foam that occurs on the cleaning roller unit 18 is guided to the middle region 264 by the scraper element 70 .
- a stripping element 70 was described, which is assigned to the cleaning roller unit 18 with a first roller part 116 and a second roller part 118 and in which the apex 270 is arranged on a central plane.
- FIG. 25(b) shows an alternative exemplary embodiment with a stripping element which is not designed to be continuous.
- Each roller part 116 or 118 is assigned its own stripping element, with these stripping elements in particular being arranged on a single holder (the holder 72).
- a contact line 262' for the exemplary case of the first roller part 116 is shown.
- the first roller part has a length L2*.
- This length L2* lies between the corresponding end faces of the first roller part 116 (or the second roller part 118).
- the corresponding edge element has edge progression 262' which is symmetrical.
- the corresponding stripping element which is assigned to the first roller part 116 (or the second roller part 118), is curved in a circular shape, with a radius of curvature R* lying in particular in the range between 2L2* and 6L2* (2L2* ⁇ R* ⁇ 6L2*).
- the combination of scraping elements has a "double hump" shape, in which combination the respective scraping elements can then be spaced or continuous.
- the corresponding curved course of the stripping element 70 can be asymmetrical and for there to be no apex or no apex at a central plane.
- dirty fluid can be diverted in a targeted manner to a side 310 (FIG. 26) or to a side 312 (FIG. 27).
- the course of the stripping element 70 is on the cleaning roller unit 18 as a whole with a combination of the first roller part 116 and the second roller part 118, or in relation to just one roller part 116 or 118 is.
- the progression according to FIGS. 26 or 27 is asymmetrical. If, for example, the curve according to FIG. 26 is present for the first roller part 116 and the curve according to FIG. In this embodiment, in particular, there is a derivation to the outside.
- the embodiment of the curved stripping element is also possible if the cleaning roller unit has only one roller part.
- the configuration of the stripping element 70 with a curvature has been described with reference to the floor cleaning machine 10 .
- This solution of the curved design can also be used on other types of surface cleaning machines, such as on a self-propelled and self-steering cleaning machine (cleaning robot).
- the floor cleaning machine 10 works as follows:
- the cleaning head 12 For a cleaning operation, the cleaning head 12 is set up on the floor 16 to be cleaned. An operator guides the cleaning head 12 over the holding bar device 36 over the floor 16 to be cleaned.
- cleaning fluid is supplied from the tank device 50 for cleaning fluid, in particular to the cleaning roller unit 18.
- the floor 16 to be cleaned is thereby moistened for better dirt removal. Dirt is taken along and transported to the stripping element 70 via the cleaning roller unit 18 . Dirty fluid, which is then in particular liquid with dirt particles, is detached from the cleaning roller unit 18 and conveyed into the dirty fluid tank device 32 .
- the guiding element function of the stripping element 70 due to the corresponding curvature results in a simplified discharge of dirty fluid.
- Coarse dirt can also be picked up.
- the sweeping element 62 ensures that coarse dirt is fed to the cleaning roller unit 18. This transports the coarse dirt directly into the dirt fluid tank device 32 and/or it is detached via the stripping element 70.
- Hair is removed from the cleaning roller unit 18 via the comb element 232 .
- the cleaning roller unit 18, in which the covering 246 is a textile material, is used in particular for a wet cleaning operation.
- the cleaning roller unit 18 can also be used for a sweeping operation.
- the cleaning roller unit 18 it is also possible, for example for a sweeping process, for the cleaning roller unit 18 to be exchanged and a cleaning roller unit to be used in which the trimmings are bristles.
- the floor-cleaning machine 10 allows for a purely dry cleaning or a wet cleaning, as required.
- the holding rod device 36 is supported on the cleaning roller unit 18 by the orbital joint 84 and a corresponding pressing force is exerted on the floor 16 to be cleaned.
- the mechanical action of the cleaning roller unit 18 on the floor 16 to be cleaned is intensified, and the ability of the floor cleaning machine 10 to detach and absorb dirt is improved.
- the cleaning roller unit 18 experiences a maximum contact pressure via the holding rod device 36 via the floor cleaning machine 10 itself.
- the dirty fluid tank device 32 always remains in the same position relative to the floor 16 to be cleaned.
- the sweeping element 62 can also be kept in the same position relative to the floor 16. This results in improved pick-up of coarse dirt and improved cleaning overall.
- the provision of the foot strap 34 and the parking position 185 allow the dirty fluid tank device 32 to be easily removed from the cleaning head 12 or the cleaning head 12 to be easily placed on the dirty fluid tank device 32 .
- an operator does not have to touch the dirty fluid tank device 32 with his hands in order to remove it or to insert it.
- the design of the swivel joint 84 as an orbital joint ensures that in every swivel position of the holding rod device 36 relative to the cleaning head 12 about the swivel axis 40 within the swivel angle range, the dirty fluid tank device 32 still assumes the same position in relation to the floor 16 and is parallel to the floor 16 remains.
- the parking position 185 locking is achieved and the floor cleaning machine 10 is in a stable position, ie the holding rod device 36 is locked and the floor cleaning machine 10 "does not fall over by itself".
- the at least one support element 120 which is arranged on the base 30 (and not on the dirty fluid tank device 32), results in optimized support for the weight of the cleaning head 12 with the dirty fluid tank device 32 on the floor 16 to be cleaned.
- a dirty fluid tank device 32 Realize with a relatively large capacity for dirty fluid.
- the holding rod device 36 can rotate about the axis of rotation 41, in particular in relation to the handle 38.
- the holding rod device 36 comprises a first part 278 and a second part 280 , the second part 280 being rotatable about the axis of rotation 41 relative to the first part 278 .
- first portion 278 is coincident with the first portion 76 and the second portion 280 is coincident with the second portion 78 of the support rod assembly 36 .
- the pivot 41 is coaxial with the first longitudinal axis 80. In principle, however, it is also possible for the pivot axis 41 to be parallel to the second longitudinal axis 42, for example. An exemplary embodiment is described below in which the axis of rotation 41 is parallel to the first longitudinal axis 80 .
- a locking device 282 is provided ( Figures 15 to 18), which on the one hand releases the rotatability of the second part 280 to the first part 278 (of the second area 78 to the first area 76) outside of a locking position 284 ( Figures 15, 16) and in the locking position 284 the rotatability of the second part 280 of the support rod device 36 to the first part 278 of the support rod device 36 about the axis of rotation 41 blocks ( Figures 17, 18).
- the locking device 284 includes a slide 288 which is arranged to be movable and in particular linearly movable on the first part 278 (on the first region 76).
- a displacement axis 289 is in particular parallel to the axis of rotation 41.
- the slide 288 has a nose 290 (compare, for example, FIG. 16) in the region of a first end.
- the slide 288 can be supported on the cleaning head 12 and there on a corresponding mating surface 292 via this nose 290 .
- the lug 290 is at a distance from the mating surface 292.
- the nose 290 acts on the counter surface 292 and this causes a displacement of the slide 288 in the displacement direction 289.
- the slide 288 is spring-supported and is mounted on the first part 278 via a spring device 294.
- the spring device is arranged and designed in such a way that it presses the slide 288 with the lug 290 in the direction of 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 parking position 185 is reached.
- the slide 288 is displaced as a whole in the direction of the second part 280.
- the slide 288 has an immersion element 296 .
- the immersion element 296 can dip into a corresponding immersion opening 298 of the second part 280 in the parking position 185 . This achieves a positive fit with regard to the ability to rotate about the axis of rotation 41 and the second part 280 of the support rod device 36 (the second area 78) can no longer rotate about the axis of rotation 41 relative to the first part 278 (the first area 76).
- the slider 288 When the support rod device 36 is brought into the parking position 185, the slider 288 is pushed as a whole in the direction of the second part 280 and the immersion element 296 immerses into the immersion opening 298 (with the second part 280 being aligned appropriately with respect to the first part 278) and in the corresponding locking position 284, the ability of the second part 280 to rotate relative to the first part 278 about the axis of rotation 41 is blocked.
- the spring device 294 acts on the slide 288 in such a way that it moves it in the direction of the cleaning head 12 or holds it there.
- the immersion element 296 is then immersed out of the immersion opening 298 and outside the locking position 284 the second part 280 can be rotated relative to the first part 278 about the axis of rotation 41 .
- the locking device 284 has an overload protection 300 .
- This overload protection 300 essentially serves to prevent damage in the event of twisting about the axis of rotation 41 in the parking position 185 .
- the slide 288 is formed in (at least) two parts with a first part 302 and a second part 304.
- the nose 290 is seated on the first part 302.
- the immersion element 296 is seated on the second part 304.
- the second part 304 is slidably mounted on the first part 302 , with support being provided by a spring device 306 .
- spring device 306 is “hard” in comparison to spring device 294 and in particular significantly harder than spring device 294.
- the spring force of the spring device 306 acts in such a way that it pushes the second part 304 away from the first part 302 until a stop 308 (see, for example, Figure 16) of the second part 304 on the first part 302 is reached.
- the slide 288 can be moved as a whole with the first part 302 and the second part 304 in the direction of displacement 289 .
- the slider 288 with the first part 302 and the second part 304 can accordingly reach the locking position 284 in the parking position 185 and can lie outside of the parking position 185 outside of the locking position 284 and enable the rotation of the second part 280 to the first part 278 about the axis of rotation 41 .
- the slide 288 In the locking position 284, the slide 288 cannot deviate in relation to the direction of displacement 289 or at most deviate with a certain amount of play.
- a movement blockage towards the cleaning head 12 is effected by the nose 290 .
- this blocking of movement is achieved by the immersion element 296 immersed in the immersion opening 298 .
- the slider 288 cannot deviate as a whole in the displacement direction 289. Due to the multi-part design of the slide 288, however, the second part 304 can move relative to the first part 302 by overcoming the spring force of the spring device 306 and can move away from the stop 308. Because of. As a result, the immersion element 296 in particular can move out of the immersion opening 298 . This reduces the risk of damage, since evasion is made possible.
Landscapes
- Cleaning By Liquid Or Steam (AREA)
- Cleaning In General (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021134463.8A DE102021134463A1 (de) | 2021-12-23 | 2021-12-23 | Flächenreinigungsmaschine mit gekrümmtem Abstreifelement |
| PCT/EP2022/083883 WO2023117346A1 (de) | 2021-12-23 | 2022-11-30 | Flächenreinigungsmaschine mit gekrümmtem abstreifelement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4452034A1 true EP4452034A1 (de) | 2024-10-30 |
| EP4452034B1 EP4452034B1 (de) | 2025-12-31 |
Family
ID=84536092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22823492.8A Active EP4452034B1 (de) | 2021-12-23 | 2022-11-30 | Flächenreinigungsmaschine mit gekrümmtem abstreifelement |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4452034B1 (de) |
| CN (1) | CN118401158A (de) |
| DE (1) | DE102021134463A1 (de) |
| WO (1) | WO2023117346A1 (de) |
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| EP2191763A1 (de) | 2008-10-07 | 2010-06-02 | Koninklijke Philips Electronics N.V. | Reinigungsvorrichtung mit Bürstenrollen |
| EP2177146A1 (de) | 2008-10-16 | 2010-04-21 | Koninklijke Philips Electronics N.V. | Vorrichtung und Verfahren zum Nassreinigen von Fußböden |
| WO2013106762A2 (en) | 2012-01-13 | 2013-07-18 | Kent Research Corporation | Surface cleaning machines and methods of use |
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| WO2019029821A1 (de) * | 2017-08-11 | 2019-02-14 | Alfred Kärcher SE & Co. KG | Flächen-reinigungsmaschine mit deckeleinrichtung für schmutzfluidtankeinrichtung |
| DE102017120723A1 (de) | 2017-09-08 | 2019-03-14 | Alfred Kärcher SE & Co. KG | Reinigungsmaschinen-Station für eine Reinigungsmaschine, Reinigungsmaschine und Kombination aus Reinigungsmaschinen-Station und Reinigungsmaschine |
| DE202018104772U1 (de) | 2018-08-20 | 2018-09-07 | Hizero Technologies Co., Ltd. | Schmutzwassersammel- und -detektionsmechanismus und Reinigungsvorrichtung |
| CA3072142C (en) | 2019-02-12 | 2023-01-10 | Bissell Inc. | Floor cleaning apparatus with cleaning fluid delivery system |
| WO2021013343A1 (de) | 2019-07-24 | 2021-01-28 | Alfred Kärcher SE & Co. KG | Bodenreinigungsmaschine |
| PL4233662T3 (pl) * | 2019-09-06 | 2025-06-16 | Alfred Kärcher SE & Co. KG | Maszyna do czyszczenia podłóg i sposób eksploatacji maszyny do czyszczenia podłóg |
-
2021
- 2021-12-23 DE DE102021134463.8A patent/DE102021134463A1/de active Pending
-
2022
- 2022-11-30 WO PCT/EP2022/083883 patent/WO2023117346A1/de not_active Ceased
- 2022-11-30 CN CN202280082059.2A patent/CN118401158A/zh active Pending
- 2022-11-30 EP EP22823492.8A patent/EP4452034B1/de active Active
Also Published As
| Publication number | Publication date |
|---|---|
| EP4452034B1 (de) | 2025-12-31 |
| WO2023117346A1 (de) | 2023-06-29 |
| DE102021134463A1 (de) | 2023-07-13 |
| CN118401158A (zh) | 2024-07-26 |
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