EP3206549A1 - Machine de nettoyage de surfaces dotée d'un dispositif d'humidification - Google Patents

Machine de nettoyage de surfaces dotée d'un dispositif d'humidification

Info

Publication number
EP3206549A1
EP3206549A1 EP15775242.9A EP15775242A EP3206549A1 EP 3206549 A1 EP3206549 A1 EP 3206549A1 EP 15775242 A EP15775242 A EP 15775242A EP 3206549 A1 EP3206549 A1 EP 3206549A1
Authority
EP
European Patent Office
Prior art keywords
cleaning
pressure
cleaning machine
machine according
cleaning roller
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP15775242.9A
Other languages
German (de)
English (en)
Other versions
EP3206549B1 (fr
Inventor
Fabian MOSER
Manuel SCHULZE
Christoph RUFENACH
Johanna BUCHMANN
Andreas MÜLLER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alfred Kaercher SE and Co KG
Original Assignee
Alfred Kaercher SE and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alfred Kaercher SE and Co KG filed Critical Alfred Kaercher SE and Co KG
Priority to PL15775242T priority Critical patent/PL3206549T3/pl
Publication of EP3206549A1 publication Critical patent/EP3206549A1/fr
Application granted granted Critical
Publication of EP3206549B1 publication Critical patent/EP3206549B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/29—Floor-scrubbing machines characterised by means for taking-up dirty liquid
    • A47L11/30—Floor-scrubbing machines characterised by means for taking-up dirty liquid by suction
    • A47L11/302—Floor-scrubbing machines characterised by means for taking-up dirty liquid by suction having rotary tools
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/02—Floor surfacing or polishing machines
    • A47L11/20—Floor surfacing or polishing machines combined with vacuum cleaning devices
    • A47L11/202—Floor surfacing or polishing machines combined with vacuum cleaning devices having separate drive for the cleaning brushes
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4002—Installations of electric equipment
    • A47L11/4008—Arrangements of switches, indicators or the like
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4013—Contaminants collecting devices, i.e. hoppers, tanks or the like
    • A47L11/4016—Contaminants collecting devices, i.e. hoppers, tanks or the like specially adapted for collecting fluids
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4027—Filtering or separating contaminants or debris
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4036—Parts or details of the surface treating tools
    • A47L11/4041—Roll shaped surface treating tools
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4036—Parts or details of the surface treating tools
    • A47L11/4044—Vacuuming or pick-up tools; Squeegees
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4063—Driving means; Transmission means therefor
    • A47L11/4069—Driving or transmission means for the cleaning tools
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/408—Means for supplying cleaning or surface treating agents
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/408—Means for supplying cleaning or surface treating agents
    • A47L11/4083—Liquid supply reservoirs; Preparation of the agents, e.g. mixing devices
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • A47L5/28—Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle
    • A47L5/30—Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle with driven dust-loosening tools, e.g. rotating brushes
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A47L9/04—Nozzles with driven brushes or agitators
    • A47L9/0461—Dust-loosening tools, e.g. agitators, brushes
    • A47L9/0466—Rotating tools
    • A47L9/0477—Rolls
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/408—Means for supplying cleaning or surface treating agents
    • A47L11/4088—Supply pumps; Spraying devices; Supply conduits

Definitions

  • the invention relates to a surface cleaning machine, comprising at least one cleaning roller, a drive device for rotational drive of the at least one cleaning roller, a moistening device for acting on the at least one cleaning roller with cleaning fluid, and a suction unit for generating a suction flow, which with at least one suction channel and at least one suction mouth, which is associated with the at least one cleaning roller, is in fluidly effective connection.
  • Such a surface cleaning machine can achieve good cleaning results.
  • dirt By moistening the at least one cleaning roller dirt can be moistened on the surface to be cleaned and so better solved. Dissolved dirt can be carried along with the rotating cleaning roller and vacuumed.
  • a cleaning device for cleaning a surface which comprises a rotatable brush.
  • a rubber wiper member which is spaced from the brush and secured to an underside of a nozzle housing.
  • From EP 2 177 128 AI a device for distributing fluid on a brush is known.
  • From DE 41 17 157 AI a method for cleaning or cleaning a preferably smooth surface is known in which the surface to be cleaned is wiped with a substantially flap-like wiper element receiving the dirt through the wiper element and then the soiled wiper element is moistened and then the dirt is sucked from the wiper element.
  • EP 0 186 005 A1 discloses a brush-type suction mouthpiece provided with wheels.
  • a device for cleaning and / or care of textile flooring such as carpets applying liquid cleaning or care products is known, with a back over the surface to be treated and treatment head.
  • the invention has for its object to provide a surface cleaning machine of the type mentioned, which has optimized operating characteristics.
  • the moistening device comprises at least one pressure-controlled switch, which releases a fluid path for cleaning fluid to the at least one cleaning roller in an open position and blocks the fluid path in a closed position, and that of at least one pressure-controlled switch is pressure-effectively coupled to the at least one suction channel, wherein at least one pressure-controlled switch moves into the open position and / or holds the open position when a vacuum is applied by a suction flow in the at least one suction channel.
  • a fluid loading of the at least one cleaning roller is coupled to a suction operation. Whether at all a loading of the at least one cleaning roller can be done with cleaning liquid or not, depends on a suction operation of
  • the surface cleaning machine is operated in a cleaning operation so that an extraction takes place. This then means that, in principle, in this operating mode, it is possible to apply the cleaning liquid to the at least one cleaning roller.
  • At least one collecting space is provided for cleaning liquid, wherein the fluid path controllable by the at least one pressure-controlled switch with respect to opening and closing lies between the at least one collecting space and the at least one cleaning roller.
  • Cleaning liquid in particular from a tank device for cleaning liquid, can be coupled into the collecting space. It can be achieved that constantly pending cleaning fluid in the plenum and can be supplied at the opening of the pressure-controlled switch, the at least one cleaning roller.
  • the collecting space may for example be formed by the interior of a (cleaning liquid) line leading to the pressure-controlled switch, or be formed by a chamber on which the switch is arranged (and in which a line leads).
  • a tank device for cleaning fluid which is in fluid-effective connection with the fluid path and in particular is in fluid-effective connection with the at least one collecting chamber for cleaning fluid.
  • a supply of cleaning fluid can be ensured.
  • cleaning liquid from the tank means is constantly present at the at least one collecting space. It can be provided in this case a (main) check valve, through which the constant queuing is switchable. As a result, for example, a cleaning operation without cleaning liquid admission can be set.
  • the tank device is in a normal operating mode of the surface cleaning machine with respect to Direction of gravity positioned above the at least one cleaning roller. It can then be conveyed pump-free gravity-driven cleaning fluid from the tank means to the at least one cleaning roller.
  • the normal operation mode is a mode in which the surface cleaning machine stands up to the surface to be cleaned via the at least one cleaning roller and an operator also stands up on the surface to be cleaned with an upper end of the surface cleaning machine facing away from the cleaning head , is positioned above the cleaning head with respect to the direction of gravity.
  • the at least one pressure-controlled switch has a first surface which is in pressure-effective connection with the at least one suction channel and has a second surface which is in pressure-effective connection with the outer space, wherein a pressure difference between the first surface and the second surface determines the position of the at least one pressure-controlled switch. It can thereby be controlled solely by the pressure on the first surface, whether the at least one pressure-controlled switch is open or closed.
  • a corresponding pressure-controlled switch can be formed in a simple manner.
  • a negative pressure of the at least one suction channel causes a pressure difference between the first surface and the second surface, which brings the at least one pressure-controlled switch in the open position and / or holds in the open position.
  • the at least one pressure-controlled switch on a back-up device which causes a return to the closed position when falling below a minimum threshold of the pressure difference and / or holds the closed position.
  • the rear part device can be formed by means of an elastic device which, for example, comprises additional springs or the like.
  • the restoring device is formed by an inherent elasticity of the at least one pressure-controlled switch.
  • the at least one pressure-controlled switch has a movable membrane. Depending on the acting pressure difference, the membrane may move and cause a transition from the open to the closed position or vice versa.
  • the at least one pressure-controlled switch has at least one movable blocking element for the fluid path, which is arranged in particular on a movable membrane. This makes it easy to achieve a blockage or opening. Furthermore, can be realized by providing a membrane with an inherent elasticity in a structurally simple way a back part. It is particularly advantageous if the distributor is arranged downstream of the at least one pressure-controlled switch for cleaning liquid to the at least one cleaning roller, which is fluidly connected to the fluid path. Via the distributor, it is possible to achieve uniform loading of the at least one cleaning roller with cleaning fluid, in particular over an entire length of the cleaning roller.
  • the manifold is formed by a gutter or comprises at least one gutter.
  • a gutter is half-shell-shaped.
  • the at least one groove extends at least approximately parallel to a longitudinal axis of the at least one cleaning roller and / or extends at least approximately parallel to an axis of rotation of the at least one cleaning roller. This makes it easy to achieve a uniform fluid supply.
  • the at least one channel with an outlet opening device extends over at least 80% of a length of the at least one cleaning roller and in particular over an entire length of the at least one cleaning roller. As a result, a good cleaning effect is achieved over the entire length of the at least one cleaning roller.
  • the at least one channel is formed, for example, half-shell-shaped.
  • an intermediate buffer for cleaning fluid can be achieved in a simple manner.
  • the gravitational potential of the at least one channel to an outlet opening device can be controlled by a user fluid application of at least one cleaning roller or not.
  • the distributor has an outlet opening device which is arranged and designed so that, depending on an angular position of the distributor to the direction of gravity, cleaning liquid flows from the distributor to the at least one cleaning roller or not. As a result, the fluid admission can be adjusted by gravity.
  • the angular position of the distributor to the direction of gravity is determined by an angular position of a longitudinal axis of the surface cleaning machine (and thus the entire machine) to a surface to be cleaned.
  • This angular position can be easily changed by an operator by raising or lowering a handle.
  • moistening of the at least one cleaning roller via the distributor is then controlled by gravity.
  • the surface cleaning machine is designed to be free of pumping by the moistening device with respect to moistening of the at least one cleaning roller. This results in a structurally simple and space-saving design. Furthermore, there is no need for an additional energy consumer such as a pump.
  • the fluid path has at least one gap channel, which is designed in particular such that a capillary effect for the flow of cleaning liquid occurs.
  • the gap channel is connected downstream of a distributor. It can thereby achieve a uniform liquid loading of the at least one cleaning roller over its length.
  • the at least one gap channel is preferably dimensioned so that a capillary effect also occurs when cleaning agent is contained in the cleaning liquid.
  • a distributor for cleaning liquid is connected upstream of the at least one gap channel with respect to a flow direction for cleaning liquid. It can thereby achieve a uniform liquid loading of the at least one cleaning roller over its length.
  • the surface cleaning machine is supported on the surface to be cleaned via a cleaning roller which is driven in rotation.
  • the operator stands on the to be cleaned Area.
  • FIG. 1 is a perspective view of an embodiment of a surface cleaning machine according to the invention.
  • Figure 2 is a side view of the surface cleaning machine according to
  • FIG. 1 A first figure.
  • Figure 3 is a front view of the surface cleaning machine according to
  • FIG. 1 A first figure.
  • Figure 4 is a sectional view taken along line 4-4 of Figure 3;
  • Figure 5 is a sectional view taken along lines 5-5 of Figure 3;
  • Figure 6 is an enlarged view of a front portion a
  • Figure 7 is an enlarged view of the area A of Figure 6 in a first position;
  • Figure 8 is a similar view as Figure 7 in another
  • FIG. 9 shows a perspective partial view of a cleaning head of the surface cleaning machine according to FIG. 1;
  • FIG 10 shows another view of the cleaning head without cleaning roller.
  • FIG. 1 to 4 An embodiment of a surface cleaning machine according to the invention, which is shown in Figures 1 to 4 (and in Figures 5 to 10 in partial view) and designated therein by 10, is designed as a floor cleaning machine for hard floors.
  • the surface cleaning machine 10 comprises a device body 12 and a cleaning head 14.
  • the cleaning head 14 is arranged on the device body 12.
  • the surface cleaning machine 10 In a cleaning process on a surface 16 to be cleaned, the surface cleaning machine 10 is supported by a cleaning roller 18 on the surface 16 to be cleaned.
  • the device body 12 has a longitudinal axis 20 (FIGS. 2, 3).
  • the surface cleaning machine 10 is kept stubborn.
  • a rod 22 For this purpose sits on the device body 12, a rod 22.
  • This rod 22 extends in the longitudinal axis 20.
  • a handle and in particular bow handle 24 is arranged. An operator can hold on this handle 24 with one hand the surface cleaning machine 10.
  • a switch 26 is arranged on the handle 24.
  • the surface cleaning machine 10 can be switched on or off via the switch 26 for a cleaning operation.
  • control of the surface cleaning machine 10 is such that by operating the switch 26 all necessary for the operation of the switch.
  • components generation of a suction flow by a suction unit, rotation of the cleaning roller 18, moistening of the cleaning roller 18
  • a switch-off on the switch 26 causes a synchronous switching off the actuation of these components.
  • the rod 22 may be vertically displaceable (along the longitudinal axis 20) or fixedly arranged on the device body 12.
  • the device body 12 comprises a housing 28 in which components of the surface cleaning machine 10 are arranged protected.
  • a hook device 30 is arranged on the rod 12 between the housing 28 and the handle 24, to which a power cord by wrapping on the rod 22 is fixed.
  • the surface cleaning machine 10 comprises a suction aggregate device, indicated as a whole by 32.
  • This suction unit 32 is used to generate a suction flow in order to perform an extraction on the cleaning roller 18 can.
  • the suction unit 32 comprises a suction fan 34, which is arranged in the housing 28.
  • the suction fan 34 in turn has a motor and in particular an electric motor 36, which is likewise arranged in the housing 28.
  • the suction unit 32 is associated with a separator 38. This separates solids from liquid components in a suction stream.
  • the separator 38 is also disposed in the housing 28.
  • the separator 38 is associated with a tank means 40 for dirty liquid. This sits removably on the housing 28th On the housing 28 also removably seated a tank means 42 for cleaning fluid.
  • the cleaning fluid is especially water or a mixture of water and detergent.
  • the suction unit 32 is in fluid communication with (at least) a suction channel 44, which is guided by the suction fan 34 on the device body 12 through the housing 28 to the cleaning head 14.
  • the suction channel 44 has a first region 46 which is positioned in the housing 28.
  • a branch 48 which branches off to a second region 50 and a third region 52 of the suction channel 44, is seated in the housing 28 at the first region 46.
  • the first area 46 is thereby divided into two subchannels.
  • the second area 50 and the third area 52 are each led to the cleaning head 14.
  • the second area 50 and the third area 52 are each assigned a suction mouth 54, which is positioned on the cleaning head 14.
  • This stocking is for example a nonwoven material.
  • the suction orifice has a first orifice wall 58 and a second, spaced orifice wall 60 (FIG. 5). Between the first mouth wall 58 and the second mouth wall 60, the respective suction mouth 54 is formed.
  • the first mouth wall 58 lies above the second mouth wall 60 when the cleaning roller 18 is placed on the surface 16 to be cleaned.
  • the first orifice wall 58 and / or the second orifice wall 60 abut against the trimming 56 of the cleaning roller 18 or protrude into the trimming 56.
  • a corresponding muzzle training is described in the non-prepublished international application PCT / EP2013 / 076445 of December 12, 2013, by the same Applicant. This document is expressly and fully incorporated by reference.
  • the second area 50 and the third area 52 may be assigned their own suction orifice 54, or a common suction orifice may be provided for the second area 50 and the third area 52 of the suction channel 44.
  • This one suction mouth 54 then has two suction points over the second region 50 and the third region 52.
  • the suction unit 32 may also be designed without branches and comprise a plurality (in particular two) of suction channels (two first areas 46) which are arranged in the housing 28. These then continue into the second area 50 and the third area 52, respectively.
  • the cleaning head 14 is held on the device body 12 via a hinge 62 pivotally about a pivot axis 64 ( Figure 2, Figure 4).
  • Pivot axis 64 is transverse to the longitudinal axis 20 of the device body 12. It lies in particular at an acute angle 66 ( Figure 2) to the longitudinal axis 20.
  • the acute angle 66 is in particular in the range between 15 ° and 35 °. In one embodiment, the acute angle 66 is about 25 °.
  • the pivot axis 64 is transverse and in particular perpendicular to a rotation axis 68 of the cleaning roller 18th
  • the cleaning roller 18 has a longitudinal axis 70.
  • the longitudinal axis 70 is in particular coaxial with the axis of rotation 68.
  • the pivot joint comprises an inner sleeve 72 (cf., for example, FIG. 4), which is arranged on the device body 12 at the acute angle 66 to the longitudinal axis 20, corresponding to the orientation of the pivot axis 64.
  • the cleaning head 14 has an outer sleeve 74, which sits on the inner sleeve 72.
  • a corresponding locking device ensures that the outer sleeve 74 with respect to the inner sleeve 72 in the direction of the pivot axis 64 is immovable.
  • the inner sleeve 72 has a cylindrical outer contour.
  • the outer sleeve 74 has a cylindrical inner contour.
  • the joint 62 is designed as a sliding joint via the rotatable mounting of the outer sleeve 74 on the inner sleeve 72.
  • a pivoting can be provided by a full 360 ° angle.
  • the pivotability is limited to a range of ⁇ 45 ° or ⁇ 90 °.
  • a line for the areas 50, 52 between the device body 12 and the cleaning head 14 is correspondingly formed elastically to allow pivoting of the cleaning head 14 (in particular in a limited pivoting range) on the hinge 62.
  • a drive device 76 is provided for rotating drive of the cleaning roller 18.
  • the drive device 76 includes a drive motor 78.
  • This drive motor 78 is in particular an electric motor.
  • the drive motor 78 is positioned in the inner sleeve 72 of the hinge 62.
  • the drive motor 78 has a motor shaft 80.
  • the motor shaft 80 has a drive axis 82.
  • the drive axis 82 is parallel and in particular coaxial with the pivot axis 64.
  • the drive motor 78 is firmly seated in the inner sleeve 72 on the device body 12. It is thereby positioned at the transition from the device body 12 to the cleaning head 14, namely on the hinge 62. It is accommodated to save space and is based on a focus of the surface cleaning machine 10 in the vicinity of the cleaning head 14.
  • the drive motor 78 is powered, for example, via mains current with electrical energy.
  • the drive axis 82 of the drive motor 78 and the axis of rotation 68 of the cleaning roller 18 are oriented transversely to each other and in particular oriented perpendicular to each other.
  • a transmission device 84 is provided for torque transmission from the drive device 76 to the cleaning roller 18.
  • the transmission device 84 includes a speed reducer 86.
  • the speed reducer 86 serves to reduce a speed compared to the speed of the motor shaft 80.
  • the drive motor 78 is, in particular, a standard electric motor having, for example, a speed on the order of 7000 revolutions per minute.
  • the speed reducer 86 provides for a reduction of the speed to, for example, about 400 revolutions per minute.
  • the speed reducer 86 is particularly arranged directly on the drive motor 78, d. H. arranged next to this. It can still be arranged in the inner sleeve 72 or already on the cleaning head 14.
  • the speed reducer 86 is formed as a planetary gear.
  • the transmission device 84 further has an angle gear 88.
  • This bevel gear 88 provides a torque deflection to cause a drive of the cleaning roller 18 with the axis of rotation 68 transverse to the drive axis 82 of the drive motor 78.
  • the angle gear 88 is in particular the speed reducer 86 downstream.
  • the angle gear 88 has one or more gears that are non-rotatably coupled to a corresponding shaft of the speed reducer 86. These act on a bevel gear to
  • the cleaning head 14 has a first end face 90 and an opposite second end face 92 (see, for example, FIG. 10). Between the a housing 94 of a cleaning roller holder 96 extends. This housing 94 partially surrounds a held thereon cleaning roller 18 in the form of a half-shell, wherein the encompassing is such that the cleaning roller 18 with a significant proportion of protrudes a cleaning process.
  • a sweeping element 98 is rotatably mounted on the housing 94 of the cleaning roller holder 96, wherein this sweeping element 98 serves for the entry of coarse dirt for entrainment by the cleaning roller 18.
  • a cleaning head 14 with a corresponding sweeping element 98 is described in the German patent application no. 10 2014 114 776.6 of 13 October 2014 by the same applicant. This document is expressly and fully incorporated by reference.
  • a drive element 102 is arranged in a central region 100 of the cleaning roller holder 96 between the first end face 90 and the second end face 92. This drive element 102 is connected to the drive device 76 in a torque-effective manner.
  • the drive element 102 is torque-effectively coupled to the angle gear 88 via a belt 104.
  • the drive element 102 is spaced from the angle gear 88.
  • the belt 104 bridges this distance and causes a drive of the drive element with rotation about the axis of rotation 68th
  • a first pin 106 is disposed in a rotationally fixed manner to the first end face 90.
  • a second pin 108 is arranged in a rotationally fixed manner.
  • the cleaning roller 18 (for example, Figure 9) is formed in two parts with a first part 110 which is non-rotatably mounted on the first pin 106, and a second part 112 which is non-rotatably seated on the second pin 108.
  • the first part 110 points to the first end face 90.
  • the second part 112 points to the second end face 92.
  • a gap 114 is formed between the first part 110 and the second part 112.
  • This gap 114 is relatively narrow and has a much smaller width than a length of the cleaning roller 18 in the longitudinal axis 20. In the gap 114 of the belt 104 is guided.
  • the belt 104 is set back relative to an outer side of the cleaning roller 18, even with respect to a position in which the stocking 56 is compressed.
  • the surface cleaning machine 10 comprises a moistening device 116 for the cleaning roller 18 (in particular FIGS. 6 to 8).
  • the humidifier comprises (at least) a pressure-controlled switch 118.
  • This pressure-controlled switch 118 is movable. (This is indicated by the double arrow 120 in FIGS. 7 and 8.)
  • the pressure-controlled switch 118 comprises a movable membrane 122, on which, for example, a blocking element 124 is integrally seated. About the mobility of the diaphragm 122 and the locking element 124 is movable.
  • the membrane 122 has a first surface 126. This first surface 126 is in pressure-effective connection with the suction channel 44 and thereby with the second region 50 and the third region 52. The pressure prevailing in the second region 50 (or the third region 52) is applied to the first surface 126. In a cleaning operation of the surface cleaning machine 10, due to the suction flow, this pressure is a negative pressure relative to the exterior space 128 outside the surface cleaning machine 10.
  • the membrane 122 Opposite the first surface 126, the membrane 122 has a second surface 130.
  • the membrane 122 is in fluid communication with a plenum 132.
  • the plenum 132 may receive cleaning fluid.
  • the collecting chamber 132 is in fluid communication with the tank means 42 for cleaning liquid via a line 134.
  • the line 134 is guided from the tank device 42 through the device body 12 to the cleaning head 14. It is designed so flexible that it does not hinder a pivoting (in particular within a finite pivoting range) of the cleaning head 14 on the device body 12 about the hinge 62.
  • a plurality of pressure-controlled switches 118 are arranged on the cleaning head 14.
  • the cleaning head 14 comprises two pressure-controlled switches 118.
  • one pressure-controlled switch 18 is connected in a pressure-effective manner to the second region 50 and a further pressure-controlled switch 118 is connected to the third region 52 in a pressure-effective manner.
  • the line 134 leads to a connection 136 (which is in particular a T-piece) in a distribution line 138.
  • the distribution line 138 in turn opens at a first connection point 140 and at a second connection point 142 in the housing 94. Behind the first connection point 140 and second connection point 142, an associated pressure-controlled switch 118 is arranged in each case.
  • the distribution line 138 forms the collecting space 132.
  • a check valve 139 is disposed on the line 134. This is especially manually operable. Through the check valve 139, a fluid-effective connection between the tank means 42 and a fluid inlet of a pressure-controlled switch 118 can be blocked.
  • more than two pressure-controlled switches 118 can be provided with corresponding connection points and collecting spaces, wherein a collecting space can also be assigned to a plurality of switches 118, or only a single pressure-controlled switch 118 with only one collecting space 132 can be provided.
  • the collecting chamber 132 in cooperation with the pressure-controlled switch 118, is designed such that cleaning liquid is constantly present in the collecting chamber 132 (if the blocking valve 139 is open).
  • the second surface 130 faces into a space 144 which is in pressure-effective communication with the exterior space 128. Between the plenum 132 and the space 144, an apparent and closeable fluid path 146 is formed. Depending on the position of the pressure-controlled switch 118, liquid can flow from the collecting space 132 into the space 144. Depending on the position of the blocking element 124, this fluid path 146 is blocked or opened.
  • a pressure difference between the second surface 130 and the first surface 126 is present or absent.
  • compared with the outer space 128 is a negative pressure above a threshold value at the first surface 126.
  • Opposite the blocking element 124 is a wall 148, which has a contact surface 150 for the blocking element 124.
  • the blocking element 124 abuts against the abutment surface 150 and the fluid path 146 is blocked; the corresponding plenum 132 and the space 144 are fluidly separated.
  • the pressure-controlled switch 118 has a rear-part device which, when the pressure difference between the first surface 126 and the second surface 130 is below the threshold value, brings about a return of the blocking element 124 to the closed position with engagement of the blocking element 124 on the abutment surface 150 ,
  • the rear part device is formed by means of the inherent elasticity of the membrane 122.
  • the transition from the open position to the closed position or vice versa of the pressure-controlled switch 118 is directly linked to the operation of the suction fan 34; the necessary negative pressure for moving and holding the diaphragm 122 in the open position is effected by the suction flow generated by the suction unit 32.
  • the pressure-controlled switch 118 and in particular a plurality of pressure-controlled switches 118 is assigned a distributor 152.
  • the distributor 152 serves to distribute cleaning liquid to the cleaning roller 18 and in particular to supply it with liquid over the length of the cleaning roller 18.
  • the manifold 152 is formed as a groove 154.
  • the channel 154 receives cleaning fluid to a certain level. She can collect cleaning fluid.
  • the groove 154 extends parallel to the longitudinal axis 70 of the cleaning roller 18 and thus parallel to the axis of rotation 68. It is arranged in particular in the space 144. It extends in particular in a length which corresponds to the length of the cleaning roller 18 in the longitudinal axis 70, so that it can be acted upon with cleaning liquid over its entire length.
  • the channel 154 is associated with an outlet opening device 156, which extends in particular over the entire length of the cleaning roller 18.
  • the groove 154 is formed in a half-shell shape. It thus has over its entire length a discharge opening 158 for cleaning fluid.
  • the manifold 152 with the groove 154 can collect cleaning liquid. It is formed by an intermediate buffer for cleaning fluid. Cleaning liquid does not necessarily flow directly to the fluid path 146 of the cleaning roller 18, but is accordingly collected in the groove 154.
  • An angular position of the surface cleaning machine 10 to the surface 16 to be cleaned is indicated in Figure 1 by the reference numeral 160.
  • This angular position 160 can vary.
  • the surface cleaning machine 10 is supported by the cleaning roller 18 on the surface 16 to be cleaned.
  • a support region 162 of the cleaning roller 18 on the surface 16 to be cleaned forms a pivot axis for a variation of the angular position 160.
  • the channel 154 is arranged so that, when a certain pivoting angle of the angular position 160 is reached, cleaning fluid from the channel 154 can flow directly to the cleaning roller 18 (FIG. 8).
  • FIG. 7 shows a position of the distributor 152 with respect to the direction of gravity g, in which the outlet opening device 156 is at a higher gravitational potential than the channel 154.
  • FIG. 8 shows a position in which the outlet opening device 156 is at a lower gravitational potential than the channel 154. In the latter case, cleaning fluid can flow directly from the channel 154 to the cleaning roller 18 and apply cleaning fluid to it.
  • the liquid supply to the cleaning roller 18 is gravitationally controlled by the angular position 160.
  • the angular position 160 is in turn set by manual operation of the operator.
  • a cleaning agent is applied to the cleaning roller 18 or not. This is determined by the height distance in the direction of gravity between the outlet port 156 and the trough 154.
  • one or more gap channels 162 are arranged between the space or spaces 144 and the outlet opening device 156. Cleaning liquid from the channel 154 must pass through a corresponding gap channel 162 in order to be able to reach the cleaning roller 18.
  • a gap channel 162 is in particular designed with dimensions such that a capillary effect for the flow of cleaning liquid occurs. Such a capillary effect promotes a uniform distribution of cleaning liquid over the entire length of the cleaning roller 18.
  • the gap channel 162 extends substantially over the entire length of the cleaning roller 18th
  • a stocking 56 of the cleaning roller 18 lies or lies almost with individual fibers at the outlet opening device 156 of the gap channel 162 in the case of Rotation of the cleaning roller 18 at.
  • a (low) vacuum is generated at the manifold 152, which entrains cleaning liquid.
  • cleaning liquid is drawn out of the gap channel 162 by the capillary action of fibers of the stocking. This ensures uniform loading of the cleaning roller 18 with cleaning fluid.
  • the supply of cleaning fluid to the cleaning roller 18 is formed pump-free.
  • the pressure controlled switch 118 is directly coupled to a suction flow effect of the suction fan 34.
  • Solenoid valves or the like provided.
  • the surface cleaning machine 10 functions as follows:
  • the surface cleaning machine 10 is supported on the cleaning surface 18 on the surface 16 to be cleaned.
  • An operator stands on the surface to be cleaned 16 behind the surface cleaning machine 10 and holds it, for example, one-handed to the handle 24th
  • the operator may perform a forward thrust in the forward direction 164.
  • the suction fan 34 In a cleaning operation, the suction fan 34 generates a suction flow, which in the suction channel 44 and thus in the areas 46, 50 and 52 causes a negative pressure relative to the outer space 128.
  • the drive motor 78 generates a torque, which is transmitted to the cleaning roller 18 via the transmission device 84. This is powered by rotation. It is driven in particular in a counterclockwise direction (indicated in Figure 1 by the reference numeral 166) rotating. It is provided in particular that the cleaning roller 18 with a peripheral speed in the range between 0.9 m / s and 1.2 m / s and in particular with a peripheral speed greater than 0.92 m / s and in particular less than 1.15 m / s is driven.
  • the drive means 76 sets the peripheral speed.
  • the cleaning roller 18 has a stocking 56 which is compressible.
  • the trim 56 is in particular made of a textile material.
  • the circumferential speed as mentioned above does not refer to a maximum diameter of the cleaning roller 18, but to a diameter when the stocking 56 is compressed, for example, by the weight of the surface cleaning machine 10.
  • Too low peripheral speed causes a pure unrolling of the surface cleaning machine on the surface to be cleaned 16 without sufficient cleaning effect. Too large peripheral speed causes a splash of cleaning fluid.
  • peripheral speeds are in particular designed for an operating speed (forward speed) of the operator of approximately 0.9 m / s.
  • the cleaning roller 18 By moistening 116, the cleaning roller 18 is moistened with detergent from the tank means 42. This fluid admission is pump-free and in particular free of magnetic valves. By gravity, cleaning liquid flows from the tank means 42 to the collection chamber or spaces 132. (In an embodiment in which the tank means is seated on the cleaning head, the tank means itself may form a collection chamber.)
  • the uniform distribution can be supported.
  • the device body 12 is pivotable relative to the cleaning head 14 about the pivot axis 64 in the pivoting range.
  • the relatively heavy drive motor 78 is arranged far below in the vicinity of the cleaning head 14 and at least partially positioned on the hinge 62 in a space-saving manner. It can be at least partially positioned outside of the cleaning head 14 (spaced from the cleaning roller 18). About the sweeping element 98 coarse dirt sweeping, which is then entrained by the cleaning roller 18.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Abstract

L'invention concerne une machine de nettoyage de surfaces comprenant au moins un rouleau de nettoyage (18), un dispositif d'entraînement (76) pour entraîner en rotation l'au moins un rouleau de nettoyage (18), un dispositif d'humidification (116) pour fournir à l'au moins un rouleau de nettoyage (18) du liquide de nettoyage, et un dispositif groupe d'aspiration (32) qui sert à produire un courant d'aspiration et qui est en liaison fluidique avec au moins un canal d'aspiration (44) et au moins une ouverture d'aspiration (54) qui est associée à l'au moins un rouleau de nettoyage (18). Le dispositif d'humidification (116) comprend au moins un commutateur (118) actionné par pression qui dans une position ouverte libère une voie fluidique (146) pour permettre le passage de liquide de nettoyage jusqu'au rouleau de nettoyage (18), et qui dans une position fermée bloque la voie fluidique (146), et l'au moins un commutateur (118) actionné par pression est couplé en termes de pression à l'au moins un canal d'aspiration (44). Lorsque l'au moins un commutateur (118) actionné par pression est sollicité par une dépression provoquée par un courant d'aspiration à l'intérieur de l'au moins un canal d'aspiration (44), il prend la position fermée et/ou reste en position fermée.
EP15775242.9A 2014-10-13 2015-10-08 Machine de nettoyage de surfaces dotée d'un dispositif d'humidification Active EP3206549B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL15775242T PL3206549T3 (pl) 2014-10-13 2015-10-08 Maszyna do czyszczenia powierzchni z urządzeniem nawilżającym

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014114809.6A DE102014114809A1 (de) 2014-10-13 2014-10-13 Flächen-Reinigungsmaschine mit Befeuchtungseinrichtung
PCT/EP2015/073275 WO2016058901A1 (fr) 2014-10-13 2015-10-08 Machine de nettoyage de surfaces dotée d'un dispositif d'humidification

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EP3206549A1 true EP3206549A1 (fr) 2017-08-23
EP3206549B1 EP3206549B1 (fr) 2021-07-21

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US (1) US10130230B2 (fr)
EP (1) EP3206549B1 (fr)
CN (1) CN106998975B (fr)
DE (1) DE102014114809A1 (fr)
PL (1) PL3206549T3 (fr)
RU (1) RU2653677C1 (fr)
UA (1) UA118405C2 (fr)
WO (1) WO2016058901A1 (fr)

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Also Published As

Publication number Publication date
CN106998975B (zh) 2019-11-08
CN106998975A (zh) 2017-08-01
DE102014114809A1 (de) 2016-04-14
PL3206549T3 (pl) 2021-12-27
US20170215676A1 (en) 2017-08-03
UA118405C2 (uk) 2019-01-10
WO2016058901A1 (fr) 2016-04-21
US10130230B2 (en) 2018-11-20
RU2653677C1 (ru) 2018-05-11
EP3206549B1 (fr) 2021-07-21

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