Self-propelled and self-steering floor cleaning machine with carrying handle

Abstract

The invention relates to a self-propelled and self-steering floor cleaning machine, comprising a floor head (12), to which a contact plane (36) for a floor to be cleaned is assigned, wherein the floor head (12) comprises a device body (14) having a bottom side (38), which is facing the contact plane (36), having a top side (40), which is facing away from the bottom side (38), and having a side wall (70) between the top side (40) and the bottom side (38), wherein a carrying handle (152) for the floor head (12) is arranged on the side wall (70).

Description

[0001] SELF-PROPELLED AND SELF-STEERING FLOOR CLEANING MACHINE WITH CARRYING HANDLE

[0002] The invention relates to a self-propelled and self-steering floor cleaning machine, comprising a floor head to which a mounting plane for a floor to be cleaned is assigned, wherein the floor head comprises a device body with a bottom side facing the mounting plane, with an upper side facing away from the bottom side, and with a side wall between the upper side and the bottom side.

[0003] Such a self-propelled and self-steering floor cleaning machine is also called a cleaning robot (vacuum robot).

[0004] US 2013 / 0061417 Al discloses a self-propelled and self-steering vacuum cleaner.

[0005] US 2018 / 0206687 Al discloses a cleaning robot.

[0006] WO 00 / 36970 A1 discloses a portable household or industrial cleaning robot.

[0007] JP 2015-181648 A discloses a cleaning robot with a handle part.

[0008] EP 4 197 414 A1 discloses a vacuum robot for cleaning and maintaining floor surfaces, comprising a mobile housing and a fan arranged in the housing for generating a vacuum to capture dust by means of an air stream, a separation system for cleaning the captured air of dust, and a dust collection container for collecting separated dust. The dust collection container has an intake opening for collecting separated dust, which can be closed via a two-part closure flap. An extendable carrying handle is arranged on the housing.

[0009] US 2008 / 0276407 A1 discloses an autonomous robot with a chassis and a body that follows the contours of the chassis. A handle is attached to the body.

[0010] US 2012 / 0260944 Al and EP 3 666 145 Al also disclose robot vacuum cleaners.

[0011] The invention is based on the object of providing a self-propelled and self-steering floor cleaning machine of the type mentioned above, which can be easily transported by an operator despite its structurally simple design.

[0012] This object is achieved according to the invention in the self-propelled and self-steering floor cleaning machine mentioned at the outset in that a carrying handle for the floor head is arranged on the side wall.

[0013] The carrying handle on the side wall allows the self-propelled and self-steering floor cleaning machine to be carried by an operator like a suitcase.

[0014] The design effort for the carrying handle is kept to a minimum.

[0015] The space required on the base head to accommodate the carrying handle is kept to a minimum.

[0016] In particular, the carrying handle can be designed to be immobile, thus reducing the design effort and, for example, also allowing for easy cleaning. It is advantageous if at least one of the following is provided: the carrying handle is integrated into the device body and, in particular, is integrated into a housing of the floor head; the carrying handle is part of the device body and, in particular, is part of a housing of the floor head.

[0017] This makes it easy to manufacture the base head. The carrying handle can be easily integrated. In particular, no moving parts are required for the carrying handle.

[0018] In particular, the carrying handle has a main extension axis, wherein a length of the carrying handle in the main extension axis is greater than a width of the carrying handle transverse to the main extension axis, with at least one of the following: the main extension axis is at least approximately parallel to the installation plane and / or at least approximately parallel to an enveloping plane of the upper side of the device body and / or at least approximately parallel to an enveloping plane of the underside of the device body; the main extension axis is at least approximately parallel to a rotation axis of at least one cleaning roller which is seated on the floor head; the main extension axis is at least approximately parallel to a wheel axis of a wheel device on the floor head; the main extension axis is transverse and in particular perpendicular to a forward travel direction of the floor head;the main extension axis follows a contour of the device body in the area of ​​the carrying handle;

[0019] In particular, the length of the carrying handle along the main axis of extension is at least four times the width of the carrying handle perpendicular to it. The carrying handle is thus designed in a band-shaped or web-shaped manner.

[0020] By positioning and designing the carrying handle with the main axis of extension, it can be easily integrated into the device body and designed in a simple manner. The space requirement can be kept to a minimum.

[0021] It is particularly advantageous if a handle recess is arranged or formed on the side wall and the carrying handle is located in the handle recess. This allows an operator to easily grasp the carrying handle. The handle recess is a recessed area into which an operator can insert their fingers, and in particular, dip their fingers through, in order to grasp the carrying handle with the palm of their hand. This allows, for example, the carrying handle to be rigidly designed and immovably fixed to the device body. This, in turn, results in minimal design effort. Furthermore, the space requirement can be kept to a minimum.

[0022] In particular, at least one of the following is then provided: the carrying handle and the handle recess are arranged and designed and adapted to one another in such a way that an operator can grasp the carrying handle with one gripping hand when the fingers of the gripping hand are immersed in the handle recess; the carrying handle bridges the handle recess; the carrying handle is designed as a web; the carrying handle is band-shaped; the carrying handle is rigid; the carrying handle is fixedly and in particular immovably positioned on the side wall; the carrying handle extends between opposite walls of the handle recess; the carrying handle is connected to walls of the handle recess; the handle recess is a depression on the device body with a closed wall relative to an interior of the device body;the handle recess has an upper wall facing the upper side of the device body and a lower wall opposite the upper wall, and the carrying handle lies between the upper wall and the lower wall and is in particular spaced from the upper wall and / or the lower wall and in particular lies at least approximately centrally between the upper wall and the lower wall;

[0023] This results in a structurally simple design. In particular, it allows for a rigid and fixed (immobile) carrying handle to be installed on the device body.

[0024] By connecting the carrying handle to the walls of the handle recess, the carrying handle can be easily secured to the device body. For example, a one-piece design on the device body is also possible.

[0025] In particular, the handle recess is a depression (recess) on the device body, which has tight walls with respect to the interior, so that no dirt fluid and the like can penetrate into the interior via the depression.

[0026] By spacing the carrying handle from the top and bottom, the floor head can be carried like a suitcase with a "balance" for an operator.

[0027] It is advantageous if at least one of the following is provided: the handle recess has a first opening on one side of the device body, which is on the side wall, and a second opening separate from the first opening, wherein the carrying handle is positioned between the first opening and the second opening; a lower wall of the handle recess, which is closest to the installation plane, is designed as a drainage surface for liquid and in particular has at least one sliding plane.

[0028] Through the first opening and the second opening, the operator can grasp the carrying handle in two different ways: firstly with the palm of the hand facing the underside, in which case the fingers dip into the first opening, and secondly with the palm of the hand facing the top, in which case the fingers dip into the second opening.

[0029] By designing a lower wall closest to the base, it is possible to prevent liquid from accumulating in the handle recess. This can drain to the floor when the base head is positioned on the base.

[0030] In a structurally advantageous embodiment, the handle recess is delimited towards the underside of the device body by an area in which at least one roller is located. This results in space-saving accommodation of the handle recess in the device body. In particular, the carrying handle is positioned on the side wall between the top side of the device body and the underside of the device body, and in particular at a distance from the top side and / or a distance from the underside. Preferably, it is located centrally between the underside and the top side. An operator can then easily carry and transport the floor head like a suitcase.

[0031] It is advantageous if the device body has a front side and a rear side opposite the front side on the side wall, with the forward travel direction of the floor head being from the rear side to the front side, and the carrying handle located on the rear side of the side wall. This allows the floor head to be easily carried. Mechanisms that must be located in the front area are not affected by the presence of the carrying handle.

[0032] In particular, at least one of the following is provided: at least one cleaning roller is positioned in a region including the front; at least one side brush is positioned in a region including the front; a sensor device is positioned in a region including the front; a wheel device is positioned between the front and the rear.

[0033] The positioning of the carrying handle on the rear side does not affect the corresponding elements. It is advantageous if the carrying handle is positioned on the side wall so that it does not protrude beyond it and, in particular, is flush with an enveloping plane on the side wall or is recessed from an enveloping plane. This results in optimized use of space. The carrying handle does not form a stop element against a wall or the like.

[0034] In one embodiment, the side wall has a first region where the carrying handle is located, and the first region is positioned between a second region and a third region of the side wall, with the second region and the third region adjacent to the first region. This results in a compact design.

[0035] In particular, at least one of the following is then provided: the first region, the second region and the third region form a rear side of the base head; the first region is located centrally between the second region and the third region and is arranged in particular symmetrically to the second region and the third region; the second region and the third region are each arranged at an angle to the first region; the first region and / or the second region and / or the third region have a substantially flat outer side on the side wall.

[0036] This results in a compact design. The dimensions of the base head can be kept small. The essentially flat design of the first section, in particular, results in an optimized arrangement of the carrying handle with optimized space utilization.

[0037] In one embodiment, the device body is assigned a center plane that is perpendicular to a wheel axis of a wheel assembly on the ground head, and the carrying handle is located at the center plane and, in particular, symmetrically to the center plane on the device body. This results in easy portability and transportability for an operator. Balancing when carrying the ground head can be easily achieved.

[0038] In one embodiment, the device body comprises a first housing part on which the bottom side is formed, a second housing part on which the top side is formed, and a third housing part positioned between the first housing part and the second housing part. This results in simple manufacturing. The number of components can be kept to a minimum.

[0039] In particular, at least one of the following is then provided: the device body consists of the first housing part, the second housing part and the third housing part; the third housing part is supported on the first housing part; the second housing part is supported on the third housing part; the third housing part comprises at least a partial region of the side wall.

[0040] This results in a simple design. The base head is easy to manufacture. It is particularly advantageous if the carrying handle is located or formed on the third housing section. This results in easy manufacturing with a simple design and optimized space utilization.

[0041] Furthermore, it is advantageous if a handle recess for the carrying handle is arranged or formed on the first housing part and / or the third housing part. This results in a structurally simple design. For example, the first housing part and / or the third housing part (and also the second housing part) can be manufactured integrally, for example as an injection-molded part with an integrated carrying handle and handle recess.

[0042] In one embodiment, the second housing part comprises a carrying handle unit with the carrying handle and the handle recess. The first housing part has a receptacle for the carrying handle unit. The third housing part can thus be manufactured integrally, for example as an injection-molded part, with the carrying handle and handle recess and with at least partially closed walls facing an interior of the device body. The corresponding receptacle on the first housing part results in simple assembly with mutual support.

[0043] In one embodiment, the floor head has a mass of at least 5 kg, and in particular at least 7 kg, and in particular at least 8 kg. In a specific embodiment, the floor head, including a battery device, weighs approximately 10 kg. Such a floor head can then be easily transported by an operator using the carrying handle. The operator has a simple way to hold and carry the floor head.

[0044] In one embodiment, a blower device is provided for generating a suction flow. Furthermore, a filter device and at least one dirt collection container device with a container and an openable lid are provided. The filter device is mounted on the lid, and the lid with the filter device can be removed from the container as a unit.

[0045] The dirt collection container device thus forms a filter box which contains the container and the filter device.

[0046] The removable lid, complete with the filter unit, allows for easy emptying and cleaning. The filter unit is attached to the lid. This makes it easy to clean the filter unit by tapping it over the lid.

[0047] Because the filter device is located on the lid, it is easy to create a mechanism that prevents the floor cleaning machine from being operated without the filter device.

[0048] It is advantageous if at least one of the following is provided: the lid with the filter device is removable from the container when the at least one dirt collection container device is removed from the device body; the container has a suction opening device via which dirty fluid in a dirty fluid flow can be coupled into the container; the lid has a suction opening device via which a negative pressure is applied to the container and which is arranged downstream of the filter device with respect to a suction flow.

[0049] The dirt collection container, if located on the device body, provides a fluid connection to the blower unit to create a dirt-laden suction flow. The intake opening creates a vacuum through the container in a suction area. The exhaust opening provides a fluid connection to the blower unit of the floor cleaning machine. The dirt collection container also functions as a vacuum interface for the floor cleaning machine.

[0050] In an advantageous embodiment, the intake opening device is assigned a flap device, which is located on the container and by means of which the intake opening device can be closed and opened depending on a flap position. Without suction flow, the container is closed by the flap device on the intake opening device, and when suction flow is applied, the container is opened at the intake opening device. The container can then be closed at the intake opening device by the flap device. When the dirt collection container device is removed from the device body, the intake opening device is automatically closed by the flap device, preventing dirt from escaping from the intake opening device.During suction operation in which the dirt collection container device is inserted on the device body, the corresponding negative pressure causes the flap device to open so that dirt can be sucked in again.

[0051] It is advantageous if at least one of the following is provided: the flap device comprises at least one rubber flap and in particular precisely one rubber flap; the flap device is positioned in an interior space of the container and is movable in the interior space of the container, wherein when the intake opening device is open, the flap device is positioned in the interior space; the flap device opens by application of negative pressure.

[0052] By providing at least one rubber flap, mobility can be easily achieved through inherent elasticity. The flap device can be designed with low mass.

[0053] By locating the flap device inside the container, vacuum control for opening and closing can be easily achieved. The flap device is protected from damage.

[0054] It is advantageous if the container has an opening on a side wall facing away from a container base, which opening can be closed by the lid, in particular with at least one of the following: the opening is oriented at least approximately parallel to the container base; the opening is continuous; the opening has at least approximately a rectangular shape or square shape.

[0055] This makes the container easy to empty and clean. It offers a high capacity for dirt. The dirt collection unit can be integrated into the floor head in a space-saving manner.

[0056] In one embodiment, the lid has a lid body on which a filter holder for holding the filter device is seated. In particular, the filter device or filter holder can then be easily separated from the lid. It is then advantageous if at least one of the following is provided: the lid body has a contact surface for the container and in particular an upper end face of the container; the filter holder projects away from the lid body in the direction of a container base when the lid is seated on the container; the filter holder is immersed in an interior of the container when the lid is seated on the container; a sealing device for fluid-tight closure of the lid to the container is seated on the lid body and / or on the container.

[0057] The contact surface of the lid body for the container, or the contact surface of the container for the lid body, allows for easy fixation of the lid body to the container. This, in turn, allows for easy positioning of the filter unit on the dirt collection container unit.

[0058] By immersing the filter holder in the interior of the container, it provides effective sealing and effectively prevents short-circuit currents. For the same reason, a sealing device is preferably provided.

[0059] It is particularly advantageous if the filter holder has at least one tapping rib, in particular with at least one of the following: the filter holder has an underside which, when the lid is closed, faces a container bottom, and the at least one tapping rib is located on the underside, wherein the filter device is positioned above the at least one tapping rib relative to the underside; the at least one tapping rib borders a passage or free space above which filter material of the filter device is positioned; the at least one tapping rib is arranged in a central region of the lid relative to a longitudinal direction of the lid, wherein the longitudinal direction in particular runs between short sides of the lid; the at least one tapping rib is designed as a web having a main extension axis in a width direction which runs between sides of the lid and in particular long sides of the lid.

[0060] The filter unit can be tapped using the at least one tapping rib. The cover with the filter holder and the at least one tapping rib acts as a tapping tool for the filter unit. Tapping loosens and removes dirt from the filter unit. This extends the service life of the filter unit and improves suction performance. This allows for easy manual cleaning of the filter unit, minimizing the risk of damage to the filter unit. When tapping, contact occurs with the at least one tapping rib and not with the filter unit.

[0061] The appropriate design of at least one tapping rib results in a structurally simple structure.

[0062] In particular, the filter holder is removably positioned on the lid and is removably secured to the lid body with a fixing device. This results in a simple structure. The filter holder can be removed with the lid, and thus the filter device with the lid, or inserted into the container. Furthermore, the filter holder can be easily attached to and removed from the lid body. This, in turn, allows for easy filter replacement.

[0063] It is advantageous if at least one of the following is provided: the filter holder has a receiving space for the filter device; a circumferential sealing device for fluid sealing is located on the filter holder and / or the cover body; the fixing device comprises at least one snap element which is located on the cover body or the filter holder, and a counter element which is located on the filter holder or cover body is associated with the at least one snap element.

[0064] This results in a structurally simple, detachable fixability of the filter holder and thus of the filter device to the lid body and thus a simple fixability of the filter device to the lid.

[0065] In an advantageous embodiment, at least one spring-loaded, movable slide is mounted on the filter holder. When the filter device is correctly positioned on the filter holder, the at least one slide rests against the filter device and is in a home position. In the home position of the at least one slide, the filter holder can be secured to the lid body. If the filter device is missing, the at least one slide is in a locked position, which prevents the filter holder from being secured to the lid body. This makes it easy to implement a mechanism that prevents an "empty" filter holder (without a filter device) from being inserted into the lid body, thus allowing the floor cleaning machine to be operated without a filter device.The at least one slider provides a mechanical element that, in the locked position (without the filter device present), prevents the filter holder from being connected to the cover. In one embodiment, the filter holder has a first receptacle for a main filter of the filter device and a second receptacle for a pre-filter of the filter device. The pre-filter is positioned upstream of the main filter with respect to the suction flow. This results in effective suction.

[0066] Advantageously, a sliding guide device for the pre-filter is arranged on the filter holder. The pre-filter can be inserted in a sliding direction on the sliding guide device, and in particular, the sliding direction is oriented transversely to a main flow direction of a suction stream through the filter device. This results in a structurally simple design. The filter holder then holds both the pre-filter and the main filter. The pre-filter can be easily replaced using the sliding guide device.

[0067] It is advantageous if at least one folding tab is provided on the lid for fixing to the container, in particular with at least one of the following: at least one first folding tab and one second folding tab are provided and in particular exactly one first folding tab and one second folding tab are provided; folding tabs are provided on opposite short sides of the lid.

[0068] This allows the lid to be connected to the container in a simple and space-saving manner (for positioning on the device body), and ensures that the lid is securely fastened to the container. This makes it possible, for example, to remove the dirt collection container assembly as a whole from the device body by exerting force on the lid, or to insert it by holding it on the lid. At least one folding tab allows for a simple design to be used. The operator can easily release the fastening device to remove the lid (with the filter assembly), or to easily fasten the lid to the container.

[0069] It is particularly advantageous if a handle is provided on the lid for removing, and in particular pulling, the at least one dirt collection container from the device body. This allows, for example, the dirt collection container to be fixed and positioned to the device body by frictional engagement, in particular to maintain a defined flow path at the floor head. The handle on the lid allows access to the dirt collection container from the outside in order to remove it from the device body or insert it into the device body.

[0070] In a structurally advantageous embodiment, the device body has a receiving chamber with a receiving space for the at least one dirt collection container device, wherein the receiving chamber has a chamber base and a chamber wall, between which the receiving space is formed, and wherein the dirt collection container device can be inserted into the receiving space in a direction transverse to the chamber base and removed from the receiving space in a direction transverse to the chamber base. This results in space-saving accommodation on the device body. A defined positioning of the dirt collection container device in the receiving chamber can be achieved. This, in turn, allows a corresponding flow path for a suction flow to be created upon insertion.

[0071] The device body is, for example, a housing to which the dirt collection container device can be fixed. In one embodiment, the device body is a floor head which is assigned a mounting plane for a floor to be cleaned, and the floor head has a bottom side which faces the mounting plane and has a top side which faces away from the bottom side, wherein the receiving chamber is open towards the top side and the at least one dirt collection container device can be removed from the device body in a direction from the bottom side to the top side. The dirt collection container device can thus be easily removably integrated into the device body. This results in a space-saving design, wherein the dirt collection container device can have a relatively high storage volume for dirt.

[0072] In particular, the chamber wall surrounds the dirt collection container laterally on all sides when the dirt collection container is positioned on the device body. This ensures positive locking in all directions transverse to the insertion direction.

[0073] In an advantageous embodiment, a first fixing device is assigned to the device body, and the at least one dirt collection container device has a second fixing device, wherein, through cooperation of the first fixing device with the second fixing device, the at least one dirt collection container device is positioned and / or fixed to the device body with respect to a suction flow guide. This allows an operator to easily achieve correct alignment of the dirt collection container device to the device body during insertion. In addition, fixing can be achieved. The dirt collection container device can then also be easily removed from the device body for emptying or cleaning.

[0074] For example, the first fixing device is located on a base plate of the device body and projects, in particular, into a receiving space of a receiving chamber for the at least one dirt collection container device. This makes it easy to couple, and in particular to frictionally couple, the dirt collection container device to the device body, and this coupling can also be easily removed again. In particular, the second fixing device is located on a side wall of the container. This results in a space-saving design. This results in a structurally simple design. The positioning or fixing of the dirt collection container device to the device body can be carried out and removed again in a simple manner.

[0075] In particular, the first fixing device and the second fixing device are designed as frictional locking devices, wherein positioning and / or fixing, and release of the fixing, are effected by the exertion of force by an operator, in particular by pushing and / or pulling on the at least one dirt collection container device. This allows the dirt collection container device to be easily inserted into and removed from the device body. The positioning and fixing of the dirt collection container device to the device body can be carried out in a simple and automated manner. This makes it easy to achieve a "correct" suction flow path configuration.

[0076] In particular, the first fixing device and the second fixing device form a snap-in mechanism. This allows a force-locking connection to be easily established and released.

[0077] In particular, the snap mechanism is designed such that when a snap connection is established, an audible acoustic signal and / or a haptic signal is generated for an operator. This provides the operator with direct feedback that correct positioning and fixing has been achieved. In one embodiment, the first fixing device comprises a leg assembly with a first leg, a second leg, and an opening between the first leg and the second leg, wherein the first leg and / or the second leg is movable and a width of the opening can be changed via the mobility of the first leg and / or the second leg. The opening width can thus be changed via appropriate positioning of the first fixing device. This can be used to achieve a frictional connection or to cancel this frictional connection.This also makes it easy to generate a haptic and / or acoustic signal through interaction of the second fixation device with the first fixation device.

[0078] In one embodiment, the second fixation device comprises at least one pin provided for positioning between the first leg and the second leg. The first leg and / or the second leg can impact this pin upon appropriate positioning, and an acoustic signal can then be generated, indicating correct positioning / fixation.

[0079] In one embodiment, the leg device has a hub on which the first leg and the second leg are seated, and which protrudes into an area between the first leg and the second leg. This allows mobility of the first leg and / or the second leg to be achieved in a simple manner. The leg device can be fixed via the hub, for example, to a base plate such as a first housing part of the base body.

[0080] It is advantageous if the second fixing device comprises at least one connecting link element, which has at least one active surface for the leg device, wherein the opening width of the leg device can be increased by exerting force on the at least one connecting link element. Thus, a frictional connection can be established or canceled by relative movement of the dirt collection container device to the base body via the at least one connecting link element, while exerting force.

[0081] In one embodiment, at least a first gate element and a spaced-apart second gate element are provided, wherein the first gate element is assigned to the first leg and the second gate element is assigned to the second leg. By providing these gate elements, the width of an opening between the first leg and the second leg can be easily influenced by the gate elements in order to establish a frictional connection, to cancel a frictional connection, or to generate an audible acoustic signal or a haptic signal.

[0082] It is advantageous if, upon insertion of the at least one dirt collection container device onto the device body, the at least one link element initially causes the opening to widen. After the action of the at least one link element ceases, the opening snaps shut, with the first leg and / or the second leg striking at least one pin element of the second fixing device, particularly with noise, and causing a force-locking fixation of the at least one dirt collection container device to the device body in a direction opposite to the insertion direction. This allows a force-locking connection to be established (and also removed) in a simple manner.

[0083] For the same reason, it is advantageous if, upon removal of the at least one dirt collection container device after it has been fixed to the device body, the at least one link element reduces the opening by exerting force by an operator to enable the at least one link element to be removed from the leg device. This makes it easy to detach the dirt collection container device from the base body. In one embodiment, the device body is a floor head. Such a floor head is guided over a floor to be cleaned. It can be guided by an operator, or it can also be designed as a self-propelled and self-steering floor cleaning machine.

[0084] In particular, a receiving chamber for the at least one dirt collection container is positioned between a blower device, which is located on the device body, and at least one cleaning roller. This results in effective suction flow guidance. It also creates a space-saving design. The dirt collection container can accommodate a large volume of dirt.

[0085] In particular, the dirt collection container is designed as a filter box, which comprises the container and the lid with the filter device. The filter device is thus integrated into the dirt collection container.

[0086] In one embodiment, the device body comprises a first housing part on which the bottom side is formed, a second housing part on which the top side is formed, and a third housing part which is positioned between the first and the second housing part.

[0087] The first housing part, the second housing part, and the third housing part can be manufactured separately and then joined together. The respective functional components of the base head can be arranged on the corresponding housing parts or formed integrally.

[0088] In particular, the third housing part, which is positioned between the first and second housing parts, forms a type of mounting plate on which essential components, and in particular driven components or drives, of the floor head are positioned. For example, 80% or more of all functional components of the floor head are positioned or formed on the third housing part.

[0089] A simpler design is achieved if the third housing part is supported on the first housing part. The first housing part, for example, forms a kind of base (lower cover) for the third housing part.

[0090] Furthermore, it is advantageous if the second housing part is supported on the third housing part. The second housing part, in particular, forms a type of cover for the third housing part. Chambers in the third housing part, such as a chamber for a motor or a chamber for an electronics unit, can then be sealed in a preferably fluid-tight manner, particularly by the first housing part and / or the second housing part. The housing parts, in turn, can thus be individually manufactured in a simple manner and, for example, can be manufactured essentially without undercuts.

[0091] It is advantageous if, relative to a vertical direction perpendicular to the installation plane, the second housing section is positioned on top of the third housing section, and the third housing section is positioned on top of the first housing section. This results in a type of sandwich construction. The number of parts for the device body can be kept to a minimum, resulting in simple manufacturing.

[0092] It is particularly advantageous if the device body consists of the first housing part, the second housing part, and the third housing part. This minimizes the number of components required for the device body. This results in simple assembly during the manufacture of the base head. During the manufacture of the housing parts with the appropriate design, chambers and the like can be preformed. A final chamber is then created, for example, by joining the housing parts together during the manufacture of the base head.

[0093] It is advantageous if at least one of the following is provided: the first housing part is one-piece and in particular formed in one piece; the second housing part is one-piece and in particular formed in one piece; the third housing part is one-piece and in particular formed in one piece; the first housing part is an injection-molded part; the second housing part is an injection-molded part; the third housing part is an injection-molded part.

[0094] The one-piece design, especially the one-piece housing components, allows for simple manufacturing. This minimizes the number of parts, resulting in simple assembly. The housing components can be easily manufactured from plastic parts, especially injection-molded parts.

[0095] Furthermore, it is advantageous if at least one of the following is provided: a side wall of the device body between the top and the bottom is formed on the first housing part, the second housing part and the third housing part; a front side of the device body is formed on the first housing part and the third housing part; a rear side of the device body is formed on the first housing part, the second housing part and the third housing part; a lateral side of the housing body between a front side and a rear side of the housing body is formed on the first housing part, the second housing part and the third housing part; the first housing part, the second housing part and the third housing part have substantially the same external dimensions in transverse planes parallel to the installation plane.

[0096] By forming a side wall of the device body on the first housing part, the second housing part, and the third housing part, a large connecting surface is created for the respective housing parts to support each other. Design aspects can also be taken into account, for example, by coloring the third housing part a different color as the middle housing part between the first housing part and the second housing part.

[0097] By forming a front side of the device body on the first housing part and the third housing part, a receiving chamber for a cleaning roller can be easily realized, for example.

[0098] The design on the back of the device body on the first housing part, on the second housing part and on the third housing part results in a good cohesion of the housing parts for the device body.

[0099] If the first housing part, the second housing part, and the third housing part have essentially the same external dimensions in transverse planes parallel to the installation plane, then the housing parts can be securely connected to one another to form the device body. This also makes it easy to create fluid-tight receiving chambers in the device body, for example. In particular, no additional housing components such as panels are required.

[0100] Furthermore, it is advantageous if at least one of the following is provided: the first housing part forms a base for the third housing part; the first housing part forms a base of the device body towards the installation plane.

[0101] In particular, it is intended that the third housing part forms a base plate for the device body, which holds essential functional components and, in particular, the drives of the floor head. The first housing part provides a lower closure towards the installation level and thus towards the floor to be cleaned. The first housing part forms a base for the third housing part, or rather, a base of the device body as a whole, towards the installation level.

[0102] It is also advantageous if the second housing part forms a cover for the device body. This allows a closed interior space to be formed on the device body to accommodate the corresponding components. This allows for easy manufacture of the base head by assembling the housing parts, with the corresponding functional components being positioned on the housing parts before or after assembly.

[0103] It is advantageous if at least one of the following is positioned on the first housing part: a bearing device for a wheel device, wherein the wheel device defines the installation plane; an area on which at least one roller is arranged, wherein the at least one roller is in particular a steering roller and / or is driven; a cleaning roller area with a recess which is open towards the installation plane; a receptacle for a carrying handle unit which is seated on the third housing part; a base for receiving a filter box, wherein the receptacle for the filter box is arranged or formed on the second housing part and / or the third housing part;

[0104] Support elements for the third housing part; at least one cliff sensor.

[0105] In particular, it is provided that the bearing device for the wheel device and the at least one cliff sensor are subsequently positioned on the first housing part after it has been manufactured. The area in which the at least one roller is arranged, the cleaning roller area, the receptacle for the carrying handle unit, the base for receiving a filter box, and the support elements for the third housing part can each (i) be subsequently positioned on the first housing part, or they can each (ii) already be an integral part of the first housing part, and the first housing part is manufactured such that one or more of the aforementioned components are manufactured during the manufacture of the first housing part and are, in particular, an integral part of the first housing part.

[0106] It is furthermore advantageous if at least one of the following is positioned in the third housing part: a bearing device for at least one rotatable cleaning roller; a blower device for generating a suction flow; at least one motor; a drive motor for a rotational drive of at least one cleaning roller; a travel drive motor for the floor head; an electronics module; a carrying handle, which is in particular formed integrally on the third housing part; a handle recess for a carrying handle, which is in particular formed integrally on the third housing part; a carrying handle unit with a carrying handle and a handle recess, which is in particular formed integrally on the third housing part; a receptacle for a filter box; a receptacle for a battery device; at least one impact body;

[0107] Support elements for supporting the first housing part;

[0108] Support elements to support the second housing part.

[0109] The third housing part forms a kind of base plate for the floor head, to which essential components are fixed.

[0110] In particular, it is provided that the bearing device for the at least one rotatable cleaning roller, the blower device, the at least one motor, the electronic module and the at least one impact body are subsequently positioned on the previously manufactured housing part.

[0111] The components carrying handle, handle recess, carrying handle unit, holder for filter box, holder for battery device, support elements can each be subsequently fixed to the third housing part or they are in particular each an integral part of the third housing part and are manufactured integrally during the production of the third housing part.

[0112] It is particularly advantageous if the third housing part comprises at least one chamber for an electronics unit, with the second housing part forming a cover for the at least one chamber. The third housing part actually forms a type of pre-chamber, which is then closed by the cover as a portion of the second housing part. This allows for a fluid-tight positioning of an electronics unit on the base head in a simple manner, which in turn simplifies the manufacture of the base head.

[0113] It is advantageous if at least one of the following is positioned on the second housing part: a recess for a holder for a filter box; a navigation device;

[0114] Support elements for support on the third housing part; an operating device; a display device; a fixing device for fixing the second housing part to the first housing part and / or the third housing part. In particular, the recess for a receptacle for the filter box and the support elements for support on the third housing part and preferably also the fixing device for fixing (at least partially) one or more further housing parts are an integral part of the second housing part and are in particular manufactured integrally during the production of the second housing part. However, they can also in principle be fixed subsequently. The navigation device, the operating device, the display device are subsequently positioned on the second housing part.

[0115] In one embodiment, the first housing part has a first side wall region, against which a third side wall region of the third housing part is supported. This results in a large support surface for connecting the third housing part to the first housing part.

[0116] For the same reason, it is advantageous if the second housing part has a second side wall region that rests against the third side wall region. In particular, the third housing part also has a side wall region, i.e., one side wall is visible from the outside.

[0117] In one embodiment, the first side wall region, the second side wall region, and the third side wall region form at least a portion of a side wall between the top and bottom of the device body. This allows for a connection of the housing parts and also for support over a large surface area. This allows for a mechanically stable connection and, furthermore, a high degree of sealing of the device body with the three housing parts.

[0118] In one embodiment, the second housing part rests on the first housing part and is fixed to it, in particular by means of screws. This allows a sandwich construction to be achieved and, in particular, the third housing part can be clamped between the first housing part and the second housing part. This results in a structurally simple design with easy manufacturing of the base head.

[0119] It is particularly advantageous if the third housing part is clamped between the first housing part and the second housing part. This allows the components of the device body to be easily connected to one another. Furthermore, an interior of the device body with fluid-tight areas can be easily created.

[0120] In one embodiment, the first housing part, the second housing part, and the third housing part are colored. The housing parts are generally visible from the outside. In this case, no additional housing elements such as panels are required for design.

[0121] In one embodiment, the first housing part and the second housing part have the same color, and the third housing part has a different color than the first housing part and the second housing part.

[0122] This opens up design possibilities. For example, it can also indicate to an operator where a carrying handle for carrying the floor head is located.

[0123] In one embodiment, the third housing part forms a mounting plate for the floor head, to which driven components of the floor head and / or drives of the floor head are fixed. Basically, the floor head has a drive for at least one rotatable cleaning roller. Furthermore, the floor head has a travel drive for self-propelling and self-steering the floor head. Furthermore, a blower device comprises at least one driven impeller. In one embodiment, the drive for the at least one cleaning roller and the travel drive as well as the blower device are arranged on the third housing part. One or more driven wheels can be arranged on the third housing part or on the first housing part. The mounting plate can be designed accordingly to absorb and dissipate forces attributable to the drives.

[0124] It is particularly advantageous if the first housing part, the second housing part, and the third housing part are manufactured separately and are separate parts that are fixed to one another. Functional components of the base head are then fixed to the housing parts, and in particular to the third housing part. The housing parts are fixed to one another. This results in simple manufacturing.

[0125] The following description of preferred embodiments, taken in conjunction with the drawings, serves to further explain the invention. They show:

[0126] Figure 1 is a perspective view of an embodiment of a floor head of a floor cleaning machine according to the invention in the form of a self-propelled and self-steering floor cleaning machine (cleaning robot);

[0127] Figure 2 shows a further perspective view of the floor cleaning machine according to Figure 1 in a partial view, with functional elements removed;

[0128] Figure 3 shows an embodiment of a device body of the

[0129] Floor cleaning machine according to Figure 1 with a first housing part, a second housing part, and a third housing part, which form the device body; Figure 4 shows a sectional view of the floor cleaning machine according to Figure 1 in a carrying position for an operator, with a holding hand of the operator indicated;

[0130] Figure 5 schematically shows an operator carrying the floor cleaning machine according to Figure 1 in the manner of a suitcase;

[0131] Figure 6 is a further perspective view of the floor cleaning machine according to Figure 1;

[0132] Figure 7 is a similar representation to Figure 6, where a

[0133] Dirt collection container device is removed from a device body;

[0134] Figure 8 is a sectional view of the floor cleaning machine according to Figure 1, wherein a position of the dirt collecting container device is indicated;

[0135] Figure 9 is a sectional view taken along line 9-9 of Figure 8;

[0136] Figure 10 is an enlarged view of area A according to

[0137] Figure 9, showing fixing devices;

[0138] Figure 11 Fixing devices for fixing the dirt collection container device to the device body;

[0139] Figure 12(a) to (e) show individual steps during a process of fixing the dirt collecting container device to the device body;

[0140] Figures 13(a) to (e) schematically illustrate individual steps in removing the dirt collection container device from the device body; Figure 14 shows a perspective view of an embodiment of a dirt collection container device with container and lid;

[0141] Figure 15 is a sectional view of the dirt collecting container device according to Figure 14;

[0142] Figure 16(a) is a partial view of the area B of the dirt collecting container device according to Figure 14 with a suction opening device which is closed;

[0143] Figure 16(b) is the same view as Figure 16(a) with the suction opening device open;

[0144] Figure 17(a) is a front view of the dirt collecting container assembly of Figure 14 when the lid is fixed to the container;

[0145] Figure 17(b) is the same view as Figure 17(a) in a step of detaching the lid from the container;

[0146] Figure 18 is a perspective view of the dirt collection container device according to Figure 14, with the lid detached from the container;

[0147] Figure 19 shows schematically a process for emptying the container of the dirt collection container device according to Figure 14 (with the lid removed according to Figure 18);

[0148] Figure 20 schematically shows a process of knocking out a

[0149] Filter device which sits on the lid when the lid is detached from the container according to Figure 18; Figure 21 is a perspective view of an embodiment of a lid which is detached from the container, with a lid body, a filter holder, and a filter device held thereon;

[0150] Figure 22 shows a further embodiment of a dirt collection container device with a container and a lid fixed thereto with a filter device which comprises a pre-filter and a main filter, in a sectional view;

[0151] Figure 23 shows a cover of the dirt collection container device according to Figure 22 with pre-filter and main filter;

[0152] Figure 24 is a sectional view of the cover according to Figure 23;

[0153] Figure 25 is a further illustration of the cover according to Figure 23 with the pre-filter removed;

[0154] Figure 26 shows an embodiment of a lid of the dirt collecting container device with a fixing device for a filter holder;

[0155] Figure 27 is another perspective view of the lid according to Figure 26;

[0156] Figures 28 and 29 schematically show details according to area C in Figure 27 for a fixing mechanism of the filter holder in the cover according to Figure 26 with a cover body; Figure 30 schematically shows individual steps in detaching a cover body from a filter holder for replacing a filter device;

[0157] Figure 31 shows an embodiment of a lid with a movable slide;

[0158] Figure 32(a) is a schematic sectional view of the detail area

[0159] D according to Figure 31, in which the slide is in a locking position; and

[0160] Figure 32(b) is a sectional view in which a movable slider is in a basic position which enables a filter holder to be fixed to a lid body.

[0161] An embodiment of a floor cleaning machine according to the invention, which is shown in the figures and designated by 10, is a self-propelled and self-steering floor cleaning machine (cleaning robot). The floor cleaning machine 10 comprises a floor head 12 with a device body 14. The device body 14 has a first housing part 16, a second housing part 18, and a third housing part 20. In particular, the device body 14 is formed by the first housing part 16, the second housing part 18, and the third housing part 20 (see Figure 3). A charging station may be provided (not shown in the drawings).

[0162] The floor head 12 comprises a driving device 22, via which the floor head 12 can be supported on a floor to be cleaned and can be driven over this floor.

[0163] In one embodiment, the driving device 22 comprises a (main) wheel device 24 with a first wheel 26a (Figure 1) and a second wheel 26b (Figure 6). The first wheel 26a and the second wheel 26b have a common wheel axle 30. Relative to a forward direction of travel 32 of the floor cleaning machine 10 over a floor to be cleaned, the wheel axle 30 is oriented transversely and, in particular, vertically.

[0164] The driving device 22 further comprises (at least) one steering roller 34.

[0165] The wheel assembly 24 and / or the steering roller 34 are driven to achieve independent movement of the floor head 12 over a floor to be cleaned. Furthermore, the steering roller 34 is driven in its pivoting position relative to the device head 14 to achieve a self-steering function of the floor cleaning machine 10.

[0166] The carriage 22 with the wheel assembly 24 and the castor 34 defines a mounting plane 36 (see Figure 4) for the floor head 12 on a floor to be cleaned. On a flat floor, the mounting plane 37 coincides with a flat floor surface.

[0167] The device body 14 has a bottom side 38 facing the installation plane 36. The bottom side 38 is formed on the first housing part 16.

[0168] The device body 14 further has an upper side 40, which faces away from the lower side 38 (and thus from the installation plane 36). The upper side 40 is formed on the second housing part 18.

[0169] In one embodiment, the device body 14 has a flat envelope surface on the underside 38 and a flat envelope surface on the top side 40. These flat envelope surfaces are, in particular, at least approximately parallel to one another.

[0170] In the embodiment shown in Figure 1, the underside 38 and the upper side 40 are each substantially flat and spaced apart in parallel.

[0171] The wheel axis 30 is parallel to the installation plane 36. The device body 14 of the ground head 12 has a front side 42 and a rear side 44 facing away from the front side 42. A longitudinal axis 46 of the device body 14 runs from the rear side 44 to the front side 42 and is perpendicular to the wheel axis 30. The forward direction of travel 32 is parallel to the longitudinal axis 46.

[0172] The device body 14 further includes a first lateral side 48a and an opposite second lateral side 48b. The lateral sides 48a, 48b each extend between the front side 42 and the rear side 44.

[0173] In one embodiment, the wheels 26 are positioned in front of the respective lateral side 48a, 48b; the first wheel 26a is positioned in front of the second lateral side 48b, and the second wheel 26b is positioned in front of the first lateral side 48a.

[0174] The wheels 26a, 26b are positioned in a central region between the front side 42 and the rear side 44 with respect to the longitudinal axis 46.

[0175] The at least one steering roller 34 is positioned on the underside 38 and in particular does not protrude beyond an outer contour of the device body 14, i.e. when the floor head 12 is properly positioned, it is completely covered at the top by the device body 14.

[0176] The device body 14 has a receptacle 50 for (at least) one cleaning roller 52 on the front side 42. The cleaning roller 52 is mounted on the floor head 12 for rotation about a rotation axis 54 (see Figure 4). The rotation axis 54 is parallel to the installation plane 36. It is particularly parallel to the wheel axis 30. It is oriented transversely and particularly perpendicularly to the longitudinal axis 46. The cleaning roller 52 is particularly driven, and a drive motor is correspondingly assigned to it, which is located on the floor head 12 (on the device body 14).

[0177] The receptacle 50 has a cuboid-shaped housing 56, which is integrated into the device body 14. This housing 56 is open to the installation plane 36 via an opening 58, so that the cleaning roller 52 can act on a floor to be cleaned.

[0178] In one embodiment, the cleaning roller 52 is a brush roller. It is also possible for the cleaning roller 52 to have a textile trim, such as a microfiber trim. Furthermore, a combination of bristles and textile trim is possible. The cleaning roller 52 is selected according to the intended cleaning process (or the intended use of the floor cleaning machine 10).

[0179] The housing 56 is closed on all sides outside the opening 58.

[0180] In one embodiment, the device body 14 has a greater width in a width direction 60 on the housing 56 than outside the housing 56. The width direction 60 is perpendicular to the longitudinal axis 46.

[0181] The width direction 60 is parallel to the installation plane 36. It is parallel to the wheel axis 30 or the rotation axis 54.

[0182] Due to this greater width of the housing 56 in the width direction 60 than outside the housing 56, a wall 62 is arranged adjacent to the wheels 26a, 26b, which in this area protrudes from the corresponding lateral side 48b or 48a. This wall 62 has an extension in a vertical axis 64, which is perpendicular to the longitudinal axis 46 and perpendicular to the width direction 60. It has an extension in the width direction 60. The wheels 26a, 26b do not protrude beyond the respective associated wall 62, so that the maximum external dimensions of the floor head 12 in the width direction 60 are predetermined by the housing 56 (apart from a side brush 176).

[0183] The wall 62 forms a kind of niche 66 on the base head 12 for the respective wheel 26a, 26b.

[0184] In the area of ​​the recess 66, the first lateral side 48a and the second lateral side 48b are substantially flat and parallel to each other. Corresponding side walls 68 of the device body 14 in this area, in front of which the respective first wheel 26a or second wheel 26b is located, are oriented transversely and, in particular, perpendicularly to the corresponding wall 62.

[0185] The regions 68 (side walls 68) are part of a side wall 70 of the device body 14, wherein the side wall 70 lies between the top side 40 and the bottom side 38.

[0186] The side wall 70 of the device body 14 has a first region 72 on the rear side 44. The first region 72 lies on a center plane 74 of the device body 14, wherein the center plane 74 is centrally located between the lateral sides 48a, 48b and parallel to the longitudinal axis 46; the width direction 60 is perpendicular to the center plane 74.

[0187] The first region 72 is positioned symmetrically on the center plane 74.

[0188] The first region 72 of the side wall 70 lies between a second region 76 and a third region 78 of the side wall 70. The second region 76 and the third region 78 are essentially identical. They are mirror-symmetrical to the center plane 74. They form a transition from the first region 72 to the respective side wall 68. In particular, the second region 76 lies at an obtuse angle to the first region 72, wherein in one embodiment, this obtuse angle is approximately 135°. The third region 78 is oriented at the corresponding obtuse angle to the first region 72. The second region 76 or the third region 78 is in turn oriented at an obtuse angle to the respective side wall 68, wherein this obtuse angle is supplemented by the obtuse angle between the second region 76 and the first region 72 or the third region 78 and the first region 72 to approximately 270°.As a result, the first region 72 is essentially perpendicular to the corresponding side wall 68.

[0189] The first housing part 16 is formed as a single piece, in particular a single piece. The second housing part 18 is formed as a single piece, in particular a single piece. The third housing part 20 is formed as a single piece, in particular a single piece. In particular, the housing parts 16, 18, 20 are injection-molded parts manufactured in one piece.

[0190] The first housing part forms or comprises a base plate (bottom plate) 80 for the device body 14. The underside 38 of the device body 14 rests on this base plate 80. A part of the housing 56, which is located at the installation plane 36 and has the opening 58, also rests on the base plate 80; the opening 58 is formed on the first housing part 16.

[0191] The first housing part 16 defines a chamber bottom 82 (Figure 3) of a receiving chamber 84 for a dirt collecting container device 86. This will be explained in more detail below.

[0192] The third housing part 20 is supported on the first housing part 16 (see Figure 3). For this purpose, the third housing part 20 has corresponding support elements 88, with corresponding counter elements 90 arranged or formed on the first housing part 16.

[0193] When the device body 14 is manufactured, the support elements 88 of the third housing part rest on the counter elements 90 of the first housing part 16. The second housing part 18 rests on the third housing part 20. The second housing part 18 has corresponding support elements 92, and the third housing part 20 has corresponding counter elements 94 for the support elements 92 of the second housing part 18.

[0194] In principle, it is also possible for the second housing part 18 to additionally be supported on the first housing part 16.

[0195] The side wall 70 between the top side 40 (which lies on the second housing part 18) and the bottom side 38 (which lies on the first housing part 16) is formed on the first housing part 16, the second housing part 18, and the third housing part 20; the combination of the housing parts 16, 18, 20 forms the side wall 70.

[0196] In one embodiment, the front side 42 is formed on the first housing part 16 and the third housing part 20 (see Figure 3). The second housing part 18 then forms a cover 96 for the device body 14.

[0197] The rear side 44 is formed on the first housing part 16, the second housing part 18 and the third housing part 20.

[0198] The lateral sides 48a, 48b are formed on the first housing part 16, the second housing part 18 and the third housing part 20.

[0199] The second housing part 18 follows the third housing part 20 in the vertical axis 64, and the third housing part 20 follows the first housing part 16 in the vertical axis 64. This forms a type of sandwich structure, wherein an "overlap" is provided with respect to the vertical axis 64, i.e., with respect to the vertical axis 64, the housing parts and in particular adjacent housing parts 16, 20 or 18, 20 are "nested" with one another.

[0200] Regarding lateral external dimensions transverse to the height axis 64, the

[0201] Housing parts 16, 18, 20 are designed to be adapted to one another and have essentially the same lateral outer dimensions in order to define the outer shape of the device body 14.

[0202] The height axis 64 is perpendicular to the installation plane 36.

[0203] A bearing device for the wheel assembly 24 is arranged on the first housing part 16. The first housing part 16 has through openings 98 for a wheel axle or wheel shaft of the wheels 26a, 26b in the area of ​​the recesses 66 on the side walls 68. The geometric wheel axle 30, as the axis of rotation, passes through these openings.

[0204] The at least one steering roller 34 is fixed in an area 100 (see Figure 3) on the first housing part 16 and in particular on the base plate 80.

[0205] In one embodiment, at least one contact element 102 for electrically contacting the base head 12, in particular with a charging station, is arranged on the first housing part 16.

[0206] It can also be provided that one or more cliff sensors are positioned on the first housing part 16.

[0207] A blower device 104 (see, for example, Figure 4) is located on the floor head 12 and, in turn, on the device body 14. The blower device 104 comprises a blower motor, particularly in the form of an electric motor, and at least one turbine wheel. During operation of the floor cleaning machine 10, the blower device 104 generates a suction flow for sucking in the dirty fluid.

[0208] The blower device 104 is positioned, relative to the longitudinal axis 46, between the dirt collection container device 86 when positioned on the device body 14, or between the receiving chamber 84 and the rear side 44. The blower device 104 is located directly on the third housing part 20. The third housing part 20 has a receiving space 106 for the blower device 104.

[0209] The receiving space 106 is closed by the second housing part 18 as a cover 96 towards the upper side 40.

[0210] The receiving chamber 84 for the dirt collection container device 86 has a receiving space 108. The receiving space 108 is defined by the chamber floor 82 and by a chamber wall 110. The chamber wall 110 is oriented transversely to the chamber floor 82.

[0211] The chamber wall 110 is formed mainly on the third housing part 20 and is adjacent to the receiving space 106 for the blower device 104. A further partial area 111 of the chamber wall 110 is formed on the second housing part 18.

[0212] The receiving chamber 84 is open toward the top side 40 of the device body 14 to allow the dirt collection container 86 to be inserted or removed. For this purpose, the device body 14 has a corresponding opening 112. This opening 112 is located on the second housing part 18.

[0213] The cleaning roller 52 is rotatably mounted in the housing 56 (around the rotation axis 54). A corresponding bearing device 114 is arranged on the third housing part 20 in an area 116.

[0214] Furthermore, a drive motor for the rotational movement of the cleaning roller 52 about the rotation axis 54 is arranged on the third housing part 20.

[0215] In one embodiment, an electronic module (electronic unit) is also positioned directly on the third housing part 20. In one embodiment, the base head 12 comprises a shock body 118. The shock body 118 is preferably positioned on the third housing part 20 and, in particular, in the region of the housing 56 on the device body 14 on the third housing part 20.

[0216] In one embodiment, the impact body 118 includes a portion at the front side 42, and lateral portions extending from the front side 42 to the corresponding wall 62.

[0217] A receptacle 120 for a rechargeable battery device is arranged on the device body 14. This receptacle is located, in particular, on the third housing part 20. The receptacle 120 for the battery device is located, in particular, adjacent to the receiving space 106 for the blower device 104.

[0218] The battery device is then located on the device body 14 between the receiving chamber 84 and the rear side 44.

[0219] The second housing part 18 closes off the receiving space 106 and the receptacle 120 towards the upper side 40.

[0220] In one embodiment, a receptacle 122 for a display unit 124, which displays operating states of the floor cleaning machine 10, such as the charge level of the battery device, is located on the second housing part 18 in an area 121 located between the rear side 44 and the opening 112. An operating unit can also be integrated into the display unit 124, for example, to manually start or stop a cleaning process.

[0221] The receptacle 122 can, for example, also comprise a wireless connection device with a corresponding antenna or antennas. In one embodiment, a carrier is accommodated on the receptacle 122, which in particular carries a display unit and an operating unit and, if appropriate, also carries an antenna unit.

[0222] A receptacle 126 is positioned on the second housing part 18 in the region of the upper side 40, which accommodates a navigation device 128. The receptacle 126 is located on an upper side of the housing 56 and is located in particular on the center plane 74.

[0223] The navigation device 128 (the receptacle 126) is positioned between the receptacle chamber 84 and the front side 42 on the top side 40 of the second housing part 18.

[0224] The second housing part 18 has an overhang region 130 on each side, which is positioned on the device body 14 above (relative to the vertical axis 64) the respective opening 98 on the first housing part 16. The overhang region 130 is positioned above the corresponding wall 62. A width of the second housing part 18 in the width direction 60 at the overhang regions 130 corresponds to the corresponding width of the housing 56 in the width direction 60.

[0225] The overhang areas 130 thus limit the respective niches 66 in the vertical axis 64 upwards.

[0226] By means of the wall 62 and an associated overhang region 130, a type of wheel housing for the respective wheel 26a or 26b is formed on the device body 14.

[0227] In one embodiment, a receptacle 132 for a type plate or device designation is positioned on an overhang area 130.

[0228] A suction nozzle device 134 is positioned on the device body 14 (see, for example, Figure 2). The suction nozzle device 134 is open toward the receiving space 108 of the receiving chamber 84. The suction nozzle device 134 provides a fluid connection between the blower device 104 and the dirt collection container device 86 in order to be able to apply a suction flow to the corresponding dirt collection container device or to enable the dirt collection container device 86 to be subjected to negative pressure.

[0229] The suction mouth device 134 is funnel-shaped.

[0230] The suction mouth device 134 comprises a first region 136, which is formed on the third housing part 20, and a second region 138, which is formed on the second housing part 18.

[0231] When the second housing part 18 is placed on the third housing part 20, the suction nozzle device 134 is configured to be functional and, in particular, has a channel 140 leading to the blower device 104. This channel 140 is arranged or formed, in particular, on the third housing part 20.

[0232] The suction mouth device 134 comprises an opening 142, which opens into the receiving space 108 of the receiving chamber 84. The opening 142 is located closer to the rear side 44 than to the front side 42.

[0233] In one embodiment, a grid 144 or a filter 144 (see Figure 7) is located at the mouth 142 to prevent larger particles from entering the channel 140.

[0234] The cleaning roller 52 is positioned in a corresponding receptacle in the housing 56. From this receptacle, (at least) one channel 146 (see Figure 8) leads to the receptacle space 108 of the receptacle chamber 84. Via this channel 146, a fluid connection is established between the receptacle of the cleaning roller 52 and the blower device 104 by means of the dirt collection container device 86. The channel 146 opens into the receptacle space 108 via an opening 147. When the dirt collection container device 86 is subjected to negative pressure via the blower device 104, the receptacle for the cleaning roller 52 is then subjected to negative pressure via the channel 146 by the dirt collection container device 86, and dirty fluid can then be sucked off and coupled into the dirt collection container device 86. This will be explained in more detail below.

[0235] The channel 146 is formed on the third housing part 20, or it is formed by cooperation of the third housing part 20 with the second housing part 18.

[0236] In one embodiment, the third housing part 20 has a first region 148, and correspondingly, the second housing part 18 has a second region 150. When the second housing part 18 is seated on the third housing part 20, the channel 146 is formed by the interaction of the first region 148 and the second region 150, thereby establishing a fluid-effective connection between the receptacle for the cleaning roller 52 and the receiving space 108 of the receiving chamber 84 for the dirt collection container device 86.

[0237] The base head 12 has a mass of at least 5 kg. In a specific embodiment, it has a mass of approximately 10 kg including the battery device.

[0238] The base head 12 has a carrying handle 152. The carrying handle 152 is designed such that the (relatively heavy) base head 12 can be transported with the device body 14 in the manner of a suitcase (see Figures 4 and 5).

[0239] The device body 14 has a uniform height (thickness) in the direction of

[0240] Height axis 64. The top side 40 and the bottom side 38 are at least approximately parallel to each other and, in particular, are at least approximately flat. (In one embodiment, the navigation device 128 protrudes beyond the top side 40 to provide a corresponding field of view for navigation.)

[0241] The carrying handle 152 is positioned on the rear side 44 and thus facing away from the housing 56 on the device body 14.

[0242] The carrying handle 152 is located on the first area 72 of the side wall 70.

[0243] When an operator properly holds the floor head 12 by the carrying handle 152, the housing 56 with the cleaning roller 52 points downward. A dirt-laden area of ​​the floor head 12 in the vicinity of the cleaning roller 52 is thus spaced apart, and in particular, at a maximum distance, from the carrying handle 152.

[0244] Relative to the height axis 64, the carrying handle 152 is arranged between the bottom side 38 and the top side 40 (see Figure 4).

[0245] In particular, the carrying handle 152 is arranged to lie above a center of gravity of the floor head 12 to enable easy transportability for an operator.

[0246] The device body 14 has a handle recess 154 in which the carrying handle 152 is located. The handle recess 154 is a recess that forms a free area on the side wall 70.

[0247] The handle recess 154 is arranged in the first region 72 of the side wall 70. The handle recess 154 is designed such that an operator holding the carrying handle 152 with one holding hand (see Figure 4) can grasp the carrying handle 152 with the gripping hand 156 while the fingers of the gripping hand 156 are immersed in the handle recess 154.

[0248] The grip recess 154 is located at the center plane 74. It is located centrally between the first lateral side 48a and the second lateral side 48b. Its dimensions are adapted to the dimensions of an average gripping hand 156.

[0249] In one embodiment, the handle recess 154 has at least approximately the shape of a hollow cuboid or hollow cube.

[0250] The handle recess 154 is a depression (hollow) on the side wall 70 with an extension in the longitudinal axis 46, in the height axis 64 and in the width direction 60.

[0251] The device body 14 is closed at the handle recess 154 and the handle recess 154 is formed as a corresponding surface depression.

[0252] The handle recess 154 comprises opposing side walls 158a and 158b. These side walls 158a, 158b are at least approximately parallel to each other. They extend along the vertical axis 64 and along the longitudinal axis 46; the recess on the side wall 70 is formed by the extension along the longitudinal axis 46.

[0253] The side walls 158a, 158b are connected to one another by spaced-apart transverse walls 160a, 160b. The transverse walls 160a, 160b each extend in the width direction 60 and in the longitudinal axis 46 (to form the recess). The side walls 158a, 158b and the transverse walls 160a, 160b protrude from a base 162 of the handle recess 154. This base 162 extends along the height axis 64 and along the width direction 60. It is set back from an outer side of the device body 14 on the rear side 44 in the longitudinal axis 64 to form the recess for the handle recess 154.

[0254] The carrying handle 152 is band-shaped and positioned above the handle recess 154 between the side walls 158a and 158b. In particular, it is positioned such that it does not protrude beyond the side wall 70 on the rear side 44. It is flush with the side wall 70 or recessed relative to it toward the bottom 162.

[0255] The carrying handle 152 is a web which bridges the handle recess 154 at least approximately centrally.

[0256] The carrying handle 152 is particularly rigid and immovably positioned on the device body 14. In one embodiment, it is an integral part of the device body 14 and, in particular, is integrated into it.

[0257] The carrying handle 152 is particularly connected to the side walls 158a, 158b and spaced from the transverse walls 160a, 160b. It is further spaced from the base 162 to provide an insertion area for the fingers of the gripping hand 156.

[0258] The transverse wall 160a is an upper wall facing the upper side 40. The transverse wall 160b is a lower wall facing the lower side 38. The carrying handle 152 is located between this upper wall 160a and lower wall 160b and is spaced apart from these transverse walls 160a, 160b. In particular, it is located at least approximately centrally between the transverse wall 160 and the transverse wall 160b with respect to the vertical axis 64. In one embodiment, the carrying handle 152 is provided with ribs and / or recesses 164 to reduce the risk of slipping.

[0259] In one embodiment, the transverse wall 160b, which is a lower wall, is provided with one or more inclined planes 166 that serve as drainage surfaces for liquid. This prevents liquid from accumulating at the handle recess 154.

[0260] The side wall 70 has a first opening 168 and a second opening 170 in the region of the carrying handle 152 toward the rear side 44. The first opening 168 and the second opening 170 are spaced apart from one another, and the carrying handle 152 lies between them. The openings 168, 170 form a penetration area for the gripping hand 156 on the device body 14.

[0261] In one embodiment, the carrying handle 152 has a main extension axis 172, relative to which the longitudinal dimensions of the carrying handle 152 are greater than transversely thereto; the carrying handle 152 is strip-shaped with a length in the main extension axis 172 that is wider than in the transverse direction thereto.

[0262] In one embodiment (Figure 1), the main extension axis 172 is parallel to the width direction 60. The main extension axis 172 is parallel to the rotation axis 54. It is parallel to the wheel axis 30.

[0263] The mentioned transverse direction for the "strip" of the band-shaped design of the carrying handle 152 is parallel to the vertical axis 64.

[0264] The thickness dimensions of the carrying handle 152 in a direction parallel to the longitudinal axis 46 (perpendicular to the main axis 172 and perpendicular to the aforementioned transverse direction) are small compared to the dimensions along the main axis 172 and also along the transverse axis. In one embodiment, the carrying handle 152 is arranged or formed on the third housing part 20. In particular, the carrying handle 152 is an integral (one-piece and one-part) component of the third housing part 20.

[0265] The handle recess 154 is formed on the first housing part 16 and on the second housing part 18. In particular, a part of the combination of the first opening 168 and the second opening 170, or in one embodiment, only the first opening 170, is formed on the first housing part 16.

[0266] It can be provided that the third housing part 20 has a carrying handle unit 174, which comprises the carrying handle 152 and a portion of the handle recess 154. When the third housing part 20 is positioned on the first housing part 16, the handle recess 154 is formed in the carrying handle 152, and accordingly, when the device body 14 is assembled (with the third housing part 20 positioned on the first housing part 16 and the second housing part 18 positioned on the third housing part 20 and fixed, for example, by screws), the handle recess 154 is formed in the carrying handle 152.

[0267] As mentioned above, the floor head 12 can then be easily transported in the manner of a suitcase (Figures 4, 5). The carrying handle 152 with the handle recess 154 can be manufactured in a simple manner. No moving parts or the like need to be provided. This results in a stable and wear-resistant design of the carrying handle 152. The carrying handle 152 and the handle recess 154 can also be exposed to dirt and can be easily washed off, since no mechanical parts or the like are necessary, and no seals or the like are required. An interior of the base body 14 is closed at the handle recess 154. In one embodiment, at least one side brush 176 (see Figure 4) is located on the first housing part 16, which side brush is used in particular for cleaning close to the edges of a wall, skirting board, or the like.

[0268] The housing parts 16, 18, and 20 allow the device body 14 to be manufactured with a minimized number of components. This results in easy assembly of these components. In particular, at least parts of all housing parts 16, 18, and 20 are visible from the outside. This also opens up design possibilities, such as different color schemes for different housing parts 16, 18, and 20.

[0269] In one embodiment, for example, the first housing part 16 and the second housing part 18 are colored the same and the third housing part 20, which is positioned between the first housing part 16 and the second housing part 18, has a different color design.

[0270] In this way, for example, the base head can also be given a "warning signal" design, which is then realized solely by the color design of the housing parts 16, 18, 20.

[0271] During the manufacture of the base head 12, it is possible to clamp the third housing part 20 with the first housing part 16 and the second housing part 18. By appropriately connecting the second housing part 18 to the first housing part 16, the third housing part 20 can be fixed to the device body 14.

[0272] The third housing part 20 can, for example, be designed to form a mounting plate for the device body 14, to which driven components and / or drives of the floor head 12 are fixed, and in particular the blower device 104 and motors are fixed. The first housing part 16 forms a base plate 80, on which the additional components, the second housing part 18 and the third housing part 20, are directly or indirectly supported. The third housing part 20 then forms the mounting plate for the aforementioned components. The second housing part 18, in turn, allows for fluid-tight sealing of receiving spaces on the third housing part 20.

[0273] The housing parts 16, 18, 20 are in particular separately manufactured components which are subsequently fixed to one another, wherein during the manufacture of the base head 12 functional components are fixed to the corresponding housing parts 16, 18, 20 as described above.

[0274] In particular, it is intended that the third housing part 20, with the corresponding mounting plate, ensures the structural stability of the device body 14 and can absorb and dissipate forces accordingly. The third housing part 20 is designed accordingly and provided with appropriate reinforcements and struts. The first housing part 16, with the base plate 80, can also have corresponding force absorption and force dissipation functions, or it can, in a sense, simply form a cover for the underside 38.

[0275] The dirt collection container device 86 is designed as a filter box and forms a unit which can be inserted as a whole into the base head 12 in the receiving chamber 84 and can be removed from the base head 12.

[0276] The dirt collection container device 86 comprises a container 178 and a lid 180 (see, for example, Figures 7, 15, 18, 19).

[0277] The container 178 serves to hold sucked-in dirt 182 (Figure 15). The lid 180 serves to close the container 78. The lid 180 further holds a filter device 186 via a filter holder 184. The filter device 186 comprises one or more filters, for example in the form of one or more flat pleated filters. The container 178 (see, for example, Figure 15) has a container base 188. When the dirt collection container device 86 is positioned in the receiving chamber 84, the container base 188 rests on the chamber base 82.

[0278] The container bottom 188 has in particular an at least approximately flat underside 190.

[0279] A circumferential side wall 192 is located on the container bottom 188. In one embodiment, the side wall 192 comprises opposing longitudinal sides 194a, 194b, which are spaced apart from one another. The side wall 192 further comprises spaced and opposing transverse sides 196a, 196b, which connect the longitudinal sides 194a, 194b to one another. An interior space 197 is formed between the side wall 192 with the longitudinal sides 194a, 194b and transverse sides 196a, 196b and the container bottom 188, which accordingly provides the dirt-holding volume of the container 178.

[0280] The side wall 192 has an end face 198 facing away from the container bottom 188. This end face 198 is provided with a flange 200 to increase the surface area. The flange 200 can be circumferential or arranged only on the transverse sides 196a, 196b or only on the longitudinal sides 194a, 194b.

[0281] The container 178 has an opening 202 on the end face 198 and thus facing away from the container bottom 188. In one embodiment, the container 178 has a rectangular shape; the container bottom 188 has a rectangular shape at the interior space 197. The opening 202 has a rectangular shape. In particular, a width of the transverse sides 196a, 196b is smaller than a length of the longitudinal sides 194a, 194b. In one embodiment, the longitudinal side 194b has a bevel toward the container bottom 188. A cross-sectional area of ​​the container bottom 188 is thus smaller than the cross-sectional area of ​​the opening 202.

[0282] The opening 202 is in particular parallel to the container bottom 188.

[0283] An intake opening device 204 is arranged on the container 178 on the side wall 192 and thereby on the longitudinal side 194a. This intake opening device 204 is positioned between the opening 202 and the container bottom 188 relative to a vertical axis 206 of the container 178. It is positioned, in particular, centrally on the longitudinal side 194a relative to the transverse sides 196a, 196b.

[0284] The longitudinal side 194a, on which the suction opening device 204 is located, is in particular substantially flat.

[0285] The suction opening device 204 comprises one or more openings which, when the dirt collection container device 86 is inserted and correctly positioned in the receiving chamber 84, are fluidly connected to the receptacle for the cleaning roller 72.

[0286] The suction opening device 204 comprises one or more openings which cooperate with the mouth 147 when the dirt collection container device 86 is correctly positioned on the base body 14. A fluid-effective connection is then established from the interior 197 of the container 178 to the receiving space for the cleaning roller 52.

[0287] The shape of the receiving space 108 of the receiving chamber 84 is adapted to the shape, in particular, of the container 178. The adaptation is such that a positive locking of the dirt collection container device 86 in the receiving chamber 84 is achieved in directions transverse to an insertion direction. In a direction parallel to the insertion direction, a force-locking fixation is additionally provided, which in particular also includes positioning in order to precisely align the suction opening device 204 with the mouth 147.

[0288] This is explained in more detail below.

[0289] In one embodiment (see, for example, Figure 14), the container 178 has a bulge 208 on the long side 194a and the transverse side 196a.

[0290] A flap device 210 (see Figures 16(a) and 16(b)) is associated with the intake opening device 204. The flap device 210 allows the intake opening device 204 to be closed and opened in a controlled manner.

[0291] The flap device 210 is movable. In one embodiment, the flap device 210 comprises one, and in particular precisely one, rubber flap 212, wherein the mobility is achieved, in particular, by the inherent elasticity of the rubber flap 212.

[0292] The flap device 210 is arranged in the interior space 197 of the container 178. In a basic state (Figure 16(a)), the flap device 210 closes the intake opening device 204, so that, in particular, only a small amount of dirt collected from the intake opening device 204 can escape from the interior space 197 to the outside.

[0293] During vacuum operation of the floor cleaning machine 10, in which the interior 197 of the container 178 is subjected to negative pressure by the blower device 104, the flap device 210 opens (see Figure 16(b)), allowing suction flow to the receptacle for the cleaning roller 52. The flap device 210 opens and closes automatically by switching the suction flow of the blower device 104 on or off.

[0294] The lid 180 has a lid body 214, on which the filter holder 184 with the filter device 186 is removably seated. The lid body 204 holds the filter device 186 (via the filter holder 184) and positions it in the container 178. The lid 180, in turn, is removable from the container 178 as a unit comprising the lid body 214 and the filter holder 184 with the filter device 186.

[0295] As will be described in more detail below, the filter holder 184 can be detached from a removed cover 180 in order to replace the filter device 186.

[0296] The fixation of the lid 180 to the container 178 is essentially effected via the lid body 214.

[0297] The lid body 214 has at least approximately a cuboid shape with a bottom side 216 and a top side 218 opposite the bottom side.

[0298] The cover body 214 has longitudinal sides 220a, 220b and transverse sides 222a, 222b. The dimensions of the longitudinal sides 220a, 220b are adapted to the longitudinal sides 194a, 194b, and the transverse sides 222a, 222b are adapted to the transverse sides 196a, 196b, such that the cover body 214 can be placed on the end face 198 (with the flange 200).

[0299] The transverse sides 222a, 222b are short sides relative to the longitudinal sides 220a, 220b. Accordingly, the longitudinal sides 220a, 220b are long sides.

[0300] A sealing device, in particular a circumferential sealing device 224, is arranged on the lid body 214 and associated with the container 178. The sealing device 224 is designed in particular as an axial seal, which ensures a fluid-tight closure of the collecting container device 86 when the lid is fixed to the container 178.

[0301] The lid body 214 has a recessed grip 226 with a handle 228 toward the top side 218. The recessed grip 226 and the handle 228 are designed such that an operator can pull the collecting container device 86 out of the receiving chamber 84 in a direction 230, which is opposite to an insertion direction 232, by grasping the handle 228. By exerting appropriate force, an operator can release a force-locking connection between the dirt collecting container device 86 and the device body 14, in order to be able to remove the dirt collecting container device 86 from the base head 12 in the direction 230. This will be explained in more detail below.

[0302] The fixation of the lid 180 with the container 178 is such that the dirt collection container device 86 as a whole (container 178 with lid 180, which closes the container 178) can be pulled out in the direction 230 from the floor head 12.

[0303] In one embodiment, folding tabs 234a, 234b are arranged on the lid body 214. The folding tab 234a is located on the transverse side 222a, and the folding tab 234b is located on the transverse side 222b. The folding tabs 234a, 234b are each positioned on the lid body 214 so as to be pivotable about a pivot axis 236.

[0304] The folding tabs 234a, 234b sit "tightly" on the lid body 214. The space requirement of the dirt collection container device 86 in the receiving chamber 84 is thus kept small.

[0305] The container 178 has a counter element 238 for the associated folding flap 234a, 234b on the end face 198, on each of the transverse sides 196a, 196b, and there, in particular, on the flange 200. When the lid body 214 rests with its underside 216 on the end face 198, a snap connection can be achieved by appropriately pivoting the folding flaps 234a and 234b through appropriate coupling to the counter element 238 with the container 178.

[0306] The corresponding snap connection is designed in particular such that the sealing device 224 is compressed axially (parallel to the vertical axis 206) in order to achieve a high fluid tightness.

[0307] The filter holder 184 is arranged and designed such that, when the lid 180 is fixed to the container 178 (with the lid body 214 resting against the end face 198 of the container 178), it is immersed in the interior space 197 of the container 178 (see, for example, Figure 15).

[0308] A suction flow, which is coupled in via the cover 180, must flow through the filter device 186.

[0309] A suction opening device 240 is arranged on the lid 180 and, in turn, on the lid body 214. This is located on the longitudinal side 220b and thus (when the lid 180 is closed) faces away from the suction opening device 204 on the container 178.

[0310] When the dirt collection container device 86 is properly positioned in the receiving chamber 84, the suction opening device 240 cooperates with the mouth 142 of the suction mouth device 134. The suction opening device 240 applies negative pressure to the dirt collection container device 86 (and thus to the receptacle for the cleaning roller 52) via the suction flow generated by the blower device 104. When the dirt collection container device 86 is correctly positioned in the receiving chamber 84, in addition to the positioning of the suction opening device 204 relative to the mouth 147, the suction opening device 240 is fluidly coupled to the mouth 142 and thus to the blower device 104.

[0311] The suction opening device 240 comprises one or more openings on the lid body 214. A flow chamber 242 (see Figure 15) is formed or arranged on the lid body 214. This flow chamber 242 is in fluid communication with the suction opening device 240. When the filter device 186 is positioned on the lid body 214, a clean side 244 of the filter device 186 faces the flow chamber 242. A dirty side 246 of the filter device 186 is positioned in the interior space 197 of the container 178 (see Figure 15).

[0312] A suction flow is generated by the blower device 104.

[0313] A dirt-laden suction stream (indicated in Figure 15 by reference numeral 246), which is contaminated by the negative pressure applied to the receptacle of the cleaning roller 52, enters the interior 197 of the container 178 in the dirt collection container device 86 at the suction opening device 204. It flows through the filter device 186. Dirt 182 accumulates in the interior 197.

[0314] Dirt particles are filtered out of the suction stream at the filter device 196. A purified suction stream 248 flows into the flow chamber 242. This exits the suction opening device 240 from the dirt collection container device 86 and is discharged ("process air"). The blower device 104 ensures that the interior 197 of the container 178 is subjected to negative pressure via the suction opening device 240 and the flow chamber 242, with the suction opening device 204 then applying negative pressure to the receptacle of the cleaning roller 52. The filter holder 184 has a receptacle 250 for the filter device 186. A seal is provided between the receptacle 250 and the filter device 186 to prevent short-circuit currents. Short-circuit currents are contaminated currents which pass the filter material of the filter device 186 (instead of through the filter material) into the flow space 242.

[0315] It is fundamentally possible for the filter device 186 to be detachable from the receptacle 250. In one embodiment, the filter device 186 is permanently connected to the filter holder 184, forming a single unit. When the filter is replaced, a complete unit consisting of the filter holder 184 and the filter device 186 is exchanged. In particular, the filter device 186 is then fluid-tightly connected to the filter holder 184 in the receptacle 250 via a two-component connection to achieve fluid tightness.

[0316] In one embodiment, the filter holder 184 is provided with knock-off ribs 252 (Figure 21). The filter holder 184 has a bottom side 254, which is in the region of the dirt side 245 of the filter device 186 or, when the lid 180 is closed, faces the container bottom 188.

[0317] On this underside 254, tabs 256 are arranged, between which at least one knock-off rib 252 and in particular a plurality of spaced-apart knock-off ribs 252 are positioned.

[0318] A knock-off rib 252 extends in a direction parallel to a transverse side 222a or 222b or transversely and in particular perpendicularly to a longitudinal side 220a, 220b.

[0319] Each knock-off rib 252 is spaced apart from the dirt side 245 of the filter device 186, so that a dirt stream can flow between a knock-off rib 252 and the filter device 186 and reach the filter device 186. A passage 258 is located between adjacent knock-off ribs 252. Such a passage 258 allows, on the one hand, a dirt-laden suction stream to flow to the dirt side 245 of the filter device 186. On the other hand, knocked-off dirt can "flow away."

[0320] A knock-off rib is located centrally on the cover 180, particularly with respect to the distance between the transverse side 222a and 222b.

[0321] In one embodiment, a connecting web 260 is arranged between adjacent tapping ribs 252, which serves in particular to increase stability or stiffen.

[0322] Figure 20 explains the function of the tapping ribs 252.

[0323] Once the lid 180 with the filter device 186 has been removed from the container 178, an operator can strike the lid 180 against an object 262, doing so in such a way that a knock-off rib 252 (or several knock-off ribs 252) strikes the object 262. This causes a mechanical vibration of the lid 180 with the filter device 186, and adhering dust can be knocked off the filter device 186. The filter material of the filter device 186 does not touch the object 262, and the risk of damage to the filter device 186, and in particular, the risk of leakage, is greatly reduced. Loosely adhering dirt to the filter device 186 can be easily removed.

[0324] With the cover 180 removed, dirt 182 can be easily emptied from the container 178 (see Figure 19).

[0325] As mentioned above, the dirt collection container assembly 86 can be removed as a whole from the receiving chamber 84 and inserted therein. When the dirt collection container assembly 86 is removed from the receiving chamber 84 or inserted therein, the lid 180 is closed and locked to the container 178 via the snap connection with the folding tabs 234a, 234b.

[0326] By pivoting the flaps 234a, 234b (Figure 17(b)), the cover 180 with the filter device 186 attached to it can be removed. The container 178 is freely accessible for emptying (Figure 19) and cleaning via the opening 202.

[0327] The cover 180 can be used, as indicated in Figure 20, to tap out the filter device 186. The filter device 186 can be replaced if necessary.

[0328] In one embodiment (Figures 22 to 25), a filter holder 264 is provided, which has a filter device with a main filter 266 and a pre-filter 268. The pre-filter 268 is positioned upstream of the main filter 266 with respect to the suction flow. A suction flow flowing from the interior 197 of the container 178 through the corresponding filter device must first flow through the pre-filter 268.

[0329] The main filter 266 is in particular firmly connected to the filter holder 264.

[0330] In one embodiment, the pre-filter 268 is detachably connected to the main filter 266. A sliding guide device 270 is provided, via which the pre-filter 268 can be detachably secured to the filter holder 264 (upstream of the main filter 266). A sliding direction 272 (insertion direction) is particularly transverse and preferably perpendicular to a main flow direction of a suction flow through the corresponding filter device.

[0331] In one embodiment, a snap-in connection device 274 is provided for detachably connecting the filter holder 184 (or 264) to the cover body 214. In one embodiment, this device comprises a plurality of tabs 276 that are movably mounted on the cover body 214. The mobility of a tab 276 is achieved, for example, through its inherent elasticity.

[0332] In one embodiment, such tabs are located on the longitudinal sides 220a, 220b. In the embodiment shown in Figures 26 and 27, one tab 276 is located centrally on the longitudinal side 220a, and two spaced-apart tabs 276 are located off-center on the longitudinal side 220b.

[0333] The filter holder 184 has corresponding counter elements 278.

[0334] In one embodiment, the filter holder 184 includes a protruding web and a tab 276 configured for engagement. The tab 276 forms a snap element for the mating element 278.

[0335] As explained in Figure 30, when the tabs 276 are locked to the respective counter-elements 278, the filter holder 184 is fixed to the cover body 214.

[0336] When the cover 180 is removed, the tabs 276 are opened by removing the clamping connection (snap connection) between the tabs 276 and the counter element 278.

[0337] The filter holder 184 with the filter device 186 is then removed from the cover body 214.

[0338] In one embodiment, it is provided that the filter holder 184 can only be connected to the cover body 214 when a filter device 186 is inserted into the filter holder 184. In this embodiment, the filter device 186 is a separate element from the filter holder 184 (see Figure 31).

[0339] At least one, and in particular precisely one, spring-loaded movable slide 280 is arranged on the filter holder 184. The slide 280 is aligned with the receptacle 250. It is supported by a spring 282 such that it tends to move into the receptacle 250.

[0340] When the filter device 186 is positioned in the receptacle 250, the slide 280 is in a basic position 284 and is pressed against the filter device 186 by the spring 282.

[0341] When the filter device 186 is removed, the spring 282 causes the slide 280 to move, and a portion 286 of the slide protrudes into the receptacle 250.

[0342] The home position 284 is also shown in Figure 32(b).

[0343] An element 288, for example in the form of a wall, is arranged on the cover body 214 (see Figures 32(a) and 32(b)). To secure the filter holder 184 to the cover body 214, the wall is supported on an element, in particular the sealing element 290, of the filter holder 184.

[0344] This also ensures the correct height for engagement of the tabs 276 on the counter element 278.

[0345] If the slide 280 is no longer in its home position 284 (Figure 32(a)), the element 288 cannot rest on the sealing element 290 because the slide 280 is "in the way." In particular, the element 288 then touches the slide 280. This results in the tab 276 being too high relative to the counter-element 278, and locking cannot occur. This, in turn, prevents the filter holder 184 from being fixed to the cover body 214 without the filter device 186.

[0346] This, in turn, prevents operation of the floor cleaning machine 10 without the filter device 186. For the frictional connection of the dirt collection container device 86 to the device body 14 when the latter is seated in the receiving chamber 84, a corresponding frictional connection device 292 comprises a first fixing device 294, which is seated on the device body 14, and a second fixing device 296, which is seated on the dirt collection container device 86 and, in turn, on the container 178 on the longitudinal side 194b (Figures 9 to 13).

[0347] The first fixing device 294 is located on the chamber bottom 82 or on the chamber wall 110 on the side on which the mouth 142 is located.

[0348] The first fixing device 294 comprises a leg device 298 with a first leg 300 and a second leg 302. The first leg 300 and the second leg 302 are seated on a hub 304 (hub) and are movable relative thereto.

[0349] An opening 306 is located between the first leg 300 and the second leg 302.

[0350] The mobility of the first leg 300 and the second leg 302 allows the width of the opening 306 to be varied.

[0351] In one embodiment, a pin 308 is located on each of the first leg 300 and the second leg 302. This pin serves as an engagement surface for a respective gate element. This will be described in more detail below.

[0352] The second fixing device 296 on the container 178 is adapted to the first fixing device 294. It has a first link element 310 and a second link element 312. The first link element 310 and the second link element 312 are spaced apart from one another. The link elements 310, 312 have active surfaces 314 that are adapted to the leg device 298.

[0353] The second fixing device 296 further includes a pin element 316. The pin element 316 is located in the vertical axis 206 above the guide elements 310, 312.

[0354] The pin element 316 and the link elements 310, 312 are in particular formed integrally on the container 178.

[0355] The insertion of a detached dirt collection container device 86 into the receiving chamber 84 is carried out as described with reference to Figures 12(a) to (e).

[0356] An operator pushes the dirt collection container assembly 86 (container 178 with closed lid 180) in the receiving chamber 84 toward the chamber floor 82. This pushing is indicated in Figure 12(a) by the arrow 318. The guide elements 310, 312 thereby come into contact with the pins 308 of the respective legs 300 and 302 (Figure 12(b)).

[0357] By further pressing down, the gate elements 310, 312 cause an enlargement of the opening 306 through their active surfaces 314 and through the further application of force (Figure 12(c)).

[0358] The guide elements 310, 312 dip into an interior space between the legs 300 and 302 (Figure 12(d)). The expansion function of the guide elements 310, 312 is then lost, since their active surfaces 314 no longer act on the pins 308. This causes a snap-like reduction in the width of the opening 306 (Figure 12(d)). Due to the appropriate dimensioning of the leg device 298 in relation to the pin element 316, the legs 300 and 302 impact the pin element 316 (Figure 12(d)). This creates an audible sound 320. An acoustic signal is emitted to the operator, indicating correct engagement. Correct engagement simultaneously ensures the correct positioning of the dirt collection container assembly 86 in the receiving chamber 84, with the suction flow openings aligned accordingly. At the same time, the dirt collection container assembly 86 is firmly fixed in position relative to direction 230.

[0359] To remove the dirt collecting container device 86 from the receiving chamber 84, the procedure is reversed (Figures 13(a) to (e)).

[0360] Once secured and positioned (Figure 13(a)), the dirt collection container assembly 86 is pulled in the direction 230 by pulling (indicated by the arrow with reference number 322). The guide elements 310, 312 are pushed out from the area between the legs 300, 302. They now move past the pins 308 on the outside (during insertion, the movement past is on the inside), thereby reducing the width of the opening 306 (see Figure 13(c)).

[0361] This allows the second fixing device 296 to be pulled out and released from the first fixing device 294. This temporarily reduces the width of the opening 306 (Figures 13(c) and (d)).

[0362] After spacing the link elements 310, 312 from the leg device 298 (Figure 13(e)), the frictional connection is removed and the dirt collection container device 86 is separated from the device body 14.

[0363] The link elements 310, 312 each have a first active surface 322a and a second active surface 322b (see Figures 12(a) and 13(c)). The first active surface 322a serves to temporarily enlarge the width of the opening 306 when the second fixing device 296 is inserted into the first fixing device 294, in order to achieve a frictional connection, and also to allow the legs 300, 302 to snap against the pin element 316.

[0364] The second active surfaces 322b serve to reduce the width of the opening 306 when the frictional connection is released in order to enable the second fixing device 296 to be pulled out and thus released from the first fixing device 294.

[0365] According to the invention, a floor cleaning machine 10 is provided which is easy to manufacture while having a compact design. This provides simplified operating options for the operator regarding emptying and cleaning the dirt collection container device 86.

[0366] A container 178 with a large storage volume can be realized.

[0367] The lid 180 is removable with the filter device 186 attached to it. This allows, for example, the filter device 186 to be tapped out via the lid 180. The container 178 can be easily emptied and cleaned with the lid 180 removed.

[0368] The positioning and fixing of the dirt collecting container device 86 in the receiving chamber 84 can be carried out in a simple manner via the frictional connection device 292.

[0369] The slide 280 effectively prevents the floor cleaning machine 10 from being operated without the filter device 186. List of reference symbols

[0370] Floor cleaning machine

[0371] Ground head

[0372] Device body

[0373] First housing part

[0374] Second housing part

[0375] Third housing part

[0376] Driving device

[0377] Wheel arrangement a First wheel b Second wheel

[0378] wheel axle

[0379] Forward direction

[0380] swivel castor

[0381] Installation level

[0382] bottom

[0383] Top

[0384] front

[0385] back

[0386] Longitudinal axis a First lateral side b Second lateral side

[0387] Recording

[0388] cleaning roller

[0389] rotation axis

[0390] Housing

[0391] opening

[0392] Latitude direction

[0393] Wall

[0394] Altitude axis

[0395] Niche side wall

[0396] side wall

[0397] First area

[0398] Middle level

[0399] Second area

[0400] Third area

[0401] Base plate

[0402] Chamber floor

[0403] Recording chamber

[0404] Dirt collection container device

[0405] Support elements

[0406] Counter element

[0407] Support elements

[0408] Counter element

[0409] Lid

[0410] opening

[0411] Area

[0412] Contact element

[0413] Blower device

[0414] recording room

[0415] recording room

[0416] Chamber wall

[0417] Sub-area

[0418] opening

[0419] Storage facility

[0420] Area

[0421] Impact body

[0422] Recording

[0423] Area

[0424] Recording

[0425] Display unit

[0426] Recording

[0427] Navigation device overhang area

[0428] Recording

[0429] Suction mouth device

[0430] First area

[0431] Second area

[0432] channel

[0433] mouth

[0434] Grid

[0435] channel

[0436] mouth

[0437] First area

[0438] Second area

[0439] Carrying handle

[0440] Handle recess

[0441] Gripping hand a side wall b side wall a cross wall b cross wall

[0442] Floor

[0443] ribs

[0444] Inclined plane

[0445] First opening

[0446] Second opening

[0447] Main extension axis

[0448] Carrying handle unit

[0449] Side brush

[0450] container

[0451] Lid

[0452] dirt

[0453] filter holder

[0454] Filter device

[0455] Container base Underside Side wall a Long side b Long side a Cross side b Cross side Interior Front side Flange Opening Suction opening device Height axis Bulge Flap device Rubber flap Lid body Underside Top side a Long side b Long side a Cross side b Cross side Sealing device Grip recess Handle Direction Insertion direction a Folding tab b Folding tab Pivoting axis Counter element Suction opening device Flow chamber Clean side

[0456] Dirty side dirty suction flow cleaned suction flow intake

[0457] Knock-off rib underside tab passage connecting bridge object filter holder main filter pre-filter

[0458] Sliding guide device sliding direction

[0459] Snap connection device tab

[0460] Counter element slide spring

[0461] Basic position area element

[0462] Sealing element frictional connection device first fixing device second fixing device leg device first leg second leg hub

[0463] Opening Pins First gate element Second gate element Effective area Pin element Press "Sound" a First effective area b Second effective area

Claims

Patent claims 1. Self-propelled and self-steering floor cleaning machine, comprising a floor head (12) which is assigned a setup plane (36) for a floor to be cleaned, wherein the floor head (12) comprises a device body (14) with a bottom side (38) which faces the setup plane (36), with an upper side (40) which faces away from the bottom side (38), and with a side wall (70) between the upper side (40) and the bottom side (38), characterized in that a carrying handle (152) for the floor head (12) is arranged on the side wall (70).

2. Floor cleaning machine according to claim 1, characterized by at least one of the following: the carrying handle (152) is integrated into the device body (14) and is in particular integrated into a housing of the floor head (12); the carrying handle (152) is part of the device body (14) and in particular part of a housing of the floor head (12).

3. Floor cleaning machine according to claim 1 or 2, characterized in that the carrying handle (152) has a main extension axis (172), wherein a length of the carrying handle (152) along the main extension axis (172) is greater than a width of the carrying handle (152) transverse to the main extension axis (172), with at least one of the following: the main extension axis (172) is at least approximately parallel to the installation plane (36) and / or at least approximately parallel to an enveloping plane of the upper side (40) of the device body (14) and / or at least approximately parallel to an enveloping plane of the underside (38) of the device body (14); the main extension axis (172) is at least approximately parallel to a rotation axis (54) of at least one cleaning roller (52) which is seated on the floor head (12); the main extension axis (172) is at least approximately parallel to a wheel axis (30) of a wheel device (24) on the base head (12);the main extension axis (172) is transverse and in particular perpendicular to a forward travel direction (32) of the ground head (12); the main extension axis (172) follows a contour of the device body (14) in the region of the carrying handle (152).

4. Floor cleaning machine according to one of the preceding claims, characterized in that a handle recess (154) is arranged or formed on the side wall (70) and that the carrying handle (152) is seated on the handle recess (154).

5. Floor cleaning machine according to claim 4, characterized by at least one of the following: the carrying handle (152) and the handle recess (154) are arranged and designed and adapted to one another such that an operator can grasp the carrying handle (152) with a gripping hand (156) when the fingers of the gripping hand (156) are immersed in the handle recess (154); the carrying handle (152) bridges the handle recess (154); the carrying handle (152) is designed as a web; the carrying handle (152) is band-shaped; the carrying handle (152) is rigid; the carrying handle (152) is fixedly and in particular immovably positioned on the side wall (70); the carrying handle (152) extends between opposite walls of the handle recess (154); the carrying handle (152) is connected to walls (158a, 158b) of the handle recess (154);the handle recess (154) is a depression on the device body (14) with a closed wall relative to an interior of the device body (14); the handle recess (154) has an upper wall (160a) facing the upper side (40) of the device body (14) and a lower wall (160b) opposite the upper wall (160a); and the carrying handle (152) lies between the upper wall (160a) and the lower wall (160b) and is in particular spaced from the upper wall (160a) and / or the lower wall (160b) and is in particular located at least approximately centrally between the upper wall (160a) and the lower wall (160b).

6. Floor cleaning machine according to claim 4 or 5, characterized by at least one of the following: the handle recess (154) has, on one side of the device body (14) which is on the side wall (70), a first opening (168) and a second opening (170) separate from the first opening (168), wherein the carrying handle (152) is positioned between the first opening (168) and the second opening (170); a lower wall (160b) of the handle recess (154), which is closest to the installation plane (36), is designed as a drainage surface for liquid and in particular has at least one inclined plane.

7. Floor cleaning machine according to one of claims 4 to 6, characterized in that the handle recess (154) is delimited towards the underside (38) of the device body (14) by an area on which at least one roller (34) is seated.

8. Floor cleaning machine according to one of the preceding claims, characterized in that the carrying handle (152) is positioned on the side wall (70) between the upper side (40) of the device body (14) and the lower side (38) of the device body (14) and is in particular spaced from the upper side (40) and / or spaced from the lower side (38).

9. Floor cleaning machine according to one of the preceding claims, characterized in that the device body (14) has a front side (42) and a rear side (44) opposite the front side (42) on the side wall (70), wherein a forward travel direction (32) of the floor head (12) is a direction from the rear side (44) to the front side (42), and that the carrying handle (152) is located on the rear side (44) of the side wall (70).

10. Floor cleaning machine according to claim 9, characterized by at least one of the following: at least one cleaning roller (52) is positioned in an area including the front side (42); at least one side brush (176) is positioned in an area including the front side (42); a sensor device is positioned in an area including the front side (42); a wheel device (24) is positioned between the front side (42) and the rear side (44).

11. Floor cleaning machine according to one of the preceding claims, characterized in that the carrying handle (152) is positioned on the side wall (70) in such a way that it does not protrude beyond the latter and is in particular flush with an envelope plane on the side wall (70) or is set back from this envelope plane.

12. Floor cleaning machine according to one of the preceding claims, characterized in that the side wall (70) has a first region (72) on which the carrying handle (152) is located, and that the first region (72) is located between a second region (76) and a third region (78) of the side wall (70), which border on the first region (72).

13. Floor cleaning machine according to claim 12, characterized by at least one of the following: the first region (72), the second region (76) and the third region (78) form a rear side (44) of the floor head (12); the first region (72) is located centrally between the second region (76) and the third region (78) and is arranged in particular symmetrically to the second region (76) and the third region (78); the second region (76) and the third region (78) are each arranged at an angle to the first region (72); the first region (72) and / or the second region (76) and / or the third region (78) have a substantially flat outer side on the side wall (70).

14. Floor cleaning machine according to one of the preceding claims, characterized in that the device body (14) is assigned a central plane (74) which is perpendicular to a wheel axis (30) of a wheel device (24) on the floor head (12), and in that the carrying handle (152) is located on the central plane (74) and is positioned in particular symmetrically to the central plane (74) on the device body (14).

15. Floor cleaning machine according to one of the preceding claims, characterized in that the device body (14) comprises a first housing part (16) on which the underside (38) is formed, a second housing part (18) on which the upper side (40) is formed, and a third housing part (20) which is positioned between the first housing part (16) and the second housing part (18).

16. Floor cleaning machine according to claim 15, characterized by at least one of the following: the device body (14) consists of the first housing part (16), the second housing part (18) and the third housing part (20); the third housing part (20) is supported on the first housing part (16); the second housing part (18) is supported on the third housing part (20); the third housing part (20) comprises at least a partial region of the side wall (70).

17. Floor cleaning machine according to claim 15 or 16, characterized in that the carrying handle (152) is arranged or formed on the third housing part (20).

18. Floor cleaning machine according to one of claims 15 to 17, characterized in that a handle recess (154) for the carrying handle (152) is arranged or formed on the first housing part (16) and / or the third housing part (20).

19. Floor cleaning machine according to claim 18, characterized in that the third housing part (20) has a carrying handle unit (174) on which the handle recess (154) is formed, and that the first housing part (16) comprises a receptacle for the carrying handle unit (174).

20. Floor cleaning machine according to one of the preceding claims, characterized in that the floor head (12) has a mass of at least 5 kg and in particular of at least 7 kg and in particular of at least 8 kg. ***

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