EP2230980A1

EP2230980A1 - Hard surface vacuum

Info

Publication number: EP2230980A1
Application number: EP08870297A
Authority: EP
Inventors: Michael Scharmacher; Ralph Diehl; Michael Schütz; Günter RAUSCHER
Original assignee: Alfred Kaercher SE and Co KG
Current assignee: Alfred Kaercher SE and Co KG
Priority date: 2008-01-11
Filing date: 2008-12-18
Publication date: 2010-09-29
Anticipated expiration: 2028-12-18
Also published as: WO2009086892A1; PL2230980T3; DK2230980T3; DK2567647T3; EP2567647A1; CN101909500A; CN101909500B; EP2567647B1; ES2399090T3; PT2230980E; ES2566936T3; DE102008004964B3; EP2230980B1; PL2567647T3

Abstract

The invention relates to a hard surface vacuum (10) comprising a suction nozzle (80) and a suction unit (16), for vacuuming a liquid-air mixture from a hard surface, and comprising a separating device (72) for separation liquid from the liquid-air mixture, and a waste liquid tank (25) for receiving the separated liquid. In order to obtain a continuous suction flow, regardless of the fill level of the waste liquid tank, without the danger of the liquid that is present in the waste liquid tank of flowing out, a separating chamber (65) is arranged between the suction nozzle (80) and the suction unit, said chamber housing the separating unit and being connected to the waste liquid tank, wherein the flow path from the suction nozzle to the suction unit leads past the waste liquid tank, and the hard surface vacuum comprises a filling device (60) with an inlet channel (50) having a filling opening (51). Beneath the filling opening (51), the waste liquid tank comprises a collecting chamber (55) for separated liquid, and the filling channel is surrounded by an alternative chamber (56) of the waste liquid tank (25), said chamber receiving liquid from the collecting chamber when pivoting the hard surface vacuum from the vertical position.

Description

Advice on the subject

The invention relates to a Hartflächenabsauggerät with a suction nozzle and a suction unit, which is in flow communication with the suction nozzle via a flow path for sucking a liquid-air mixture from a hard surface, and with a separator for separating liquid from the liquid-air mixture and with a Dirty liquid tank for receiving the separated liquid.

Such Hartflächenabsauggeräte can be used for the suction of hard surfaces, especially tiled walls or floors or for removing a water film of windows or glass doors. For this purpose, a suction flow can be achieved by means of the suction unit, so that dirt particles and water droplets can be sucked through the suction nozzle from the hard surface and transferred into the dirty liquid container. Such Hartflächenabsauggeräte are known for example from US Pat. Nos. 3,254,360 and 3,118,165. In addition, such Hartflächenabsauggeräte be described in DE 2555648 Al.

Furthermore, US Pat. No. 6,347,428 also discloses such a hard surface suction device, wherein the hard surface can not only be sucked off, but alternatively the hard surface can be cleaned by means of a rotatable brush. For this purpose, the suction flow generated by the suction unit can be passed either through a suction port of the suction nozzle or through a rotor through which drives the brush via a gear. The suction stream emanating from the suction mouth of the suction nozzle is led through the dirty liquid tank for sucking off the hard surface, liquid droplets within the dirty liquid tank being removed from the liquid-air mixture. to be divorced. This has the disadvantage that the Abscheidwirkung depends on the level within the dirty liquid tank.

US Pat. No. 6,691,369 describes a hard surface suction device in which the dirty fluid tank is separated from the flow path between the suction nozzle and the suction unit by means of a float. The separation effect is thus not affected by the level of the dirty liquid tank. However, there is a risk that liquid located in the dirty liquid tank again comes out of the suction nozzle, if the Hartflächenabsauggerät is oriented obliquely to the vertical. In particular, when transporting the Hartflächenabsauggerätes after a successful operation, therefore, the user has to make sure that he keeps the Hartflächenabsauggerät in a predetermined position.

Object of the present invention is to develop a Hartflächenabsauggerät of the type mentioned in such a way that it forms regardless of the level of Schmutzflüssigkeitstanks a constant suction flow, without the risk that fluid in the dirty liquid tank can emerge from this again.

This object is achieved in a Hartflächenabsauggerät of the generic type according to the invention that in the flow path between the suction nozzle and the suction unit, a deposition chamber is arranged, which receives the separator and which is connected to the dirty liquid tank, wherein the flow path from the suction nozzle to the suction unit passes the dirty liquid tank and wherein the hard surface suction device has a filling device with a filling channel, which has an inlet Filling opening, wherein the dirty liquid tank forms a collecting space for separated liquid, which is arranged relative to an upright position of Hartflächenabsauggerätes below the filling opening, and a surrounding the filling channel Ausweichraum which receives liquid from the upright position when pivoting the Hartflächenabsauggeräts from the upright position ,

In the hard surface suction device according to the invention, the separation of liquid from the aspirated liquid-air mixture takes place in a separation chamber, which is arranged in the flow path between the suction nozzle and the suction unit and which is connected to the dirty liquid tank. In the dirty liquid tank, the separated liquid collects without affecting the suction flow caused by the suction unit. The suction flow does not reach through the dirty liquid tank and is thus independent of the filling level of the dirty liquid tank. The separation effect does not depend on the level of the dirty liquid tank, since the separation takes place outside of the dirty liquid tank.

To ensure that liquid in the dirty liquid tank can not escape from it again, if the user pivots the hard surface suction device from the upright position, for example in a lying position or even in a position overhead, according to the invention a filling device is provided with a filling channel having a filling opening having. Liquid that has been separated from the liquid / air mixture in the separation chamber can enter the dirty liquid tank via the filling opening. The dirty liquid tank forms a collecting space for the separated liquid below the filling opening out. In addition, the dirty liquid tank in the area surrounding the filling channel comprises an escape space, which receives liquid from the collecting space during pivoting of the hard surface suction device from the upright position. Liquid, which thus came out of the deposition chamber via the filling opening in the dirty liquid tank, can no longer flow out of the dirty liquid tank by pivoting the Hartflächenabsauggerätes, it collects rather, starting from the below the filling opening arranged collecting space in the surrounding the filling channel escape space. So even if the Hartflächenabsauggerät is held by the user in a position in which the suction nozzle is arranged below the suction unit, there is no risk that liquid will flow out of the dirty liquid tank. The handling of the Hartflächenabsauggerätes is considerably simplified.

The filling channel preferably projects into the dirty liquid tank and the filling opening is arranged inside the dirty liquid tank. The area surrounding the filling channel within the dirty liquid tank thus forms the escape space, which can absorb the liquid in the collecting space when the hard surface suction device is pivoted out of the vertical. Alternatively, it can also be provided that the filling channel is arranged outside the dirty liquid tank, wherein the dirty liquid tank at least partially surrounds the filling channel in the circumferential direction in order to form the escape space.

It is advantageous if the volume of the escape space is at least as great as the volume of the collecting space, because this allows the collecting space to be completely filled with liquid, and during the pivoting of the hard space. surface suction device from its upright position, the entire, located in the collecting space liquid can be absorbed by the escape space.

In a preferred embodiment, the filling opening is arranged approximately halfway up the dirty liquid tank in relation to an upright position of the hard surface suction device. The collected in an upright position of the Hartflächenabsauggerätes the separated liquid collecting space may extend from a bottom wall of the dirty liquid tank up to the lower edge of the halfway arranged filling opening, and the swirling of Hartflächenabsauggerätes from the vertical position liquid from the collecting space receiving alternative space can be based on an upper edge of the filling opening extend to a ceiling wall or, for example, up to a filler neck or generally to the upper boundary of the interior of the dirty liquid tank.

So that the user can easily recognize the level of the dirty liquid tank, it is advantageous if the dirty liquid tank is transparent and has marking elements for reading the filling level. The marking elements can be configured, for example, as marking ribs integrally formed on the dirty liquid tank on the outside. An uppermost marking element can be arranged at the level of the filling opening and thereby indicate to the user the maximum filling level.

In order for fluid to flow into the dirty fluid tank during operation of the hard surface suction device, it is necessary to allow fluid to flow within the dirty fluid tank Contaminated air tanks can escape from the tank. For this purpose, in an advantageous embodiment it is provided that the filling device has a ventilation channel which dips into the dirty liquid tank and projects beyond the filling channel on the side facing away from the filling opening and has a ventilation opening inside the dirty liquid tank. The dirty liquid tank can be ventilated via the ventilation channel. Since the ventilation channel protrudes beyond the filling channel in the direction of the deposition chamber, ie on the side facing away from the filling opening of the filling channel, liquid can flow from the separation chamber to the end region of the ventilation channel facing the separation chamber in order to reach the dirty liquid tank via the filling channel. At the same time, air can escape unhindered from the dirty liquid tank via the ventilation duct.

It is advantageous if the ventilation opening of the ventilation duct arranged inside the dirty fluid tank is arranged at the same height with respect to the vertical as the filling opening of the filler channel. This has the advantage that below the ventilation opening of the above-described collecting space for separated liquid is located and above the ventilation opening of the discharge channel surrounding the escape space for liquid is arranged. There is therefore no risk that liquid can flow out of the dirty liquid tank via the ventilation channel.

Preferably, the ventilation duct is arranged laterally next to the filling channel, because this allows the ventilation device to be given a particularly compact design. In particular, it can be provided that the ventilation channel is rigidly connected to the filling channel. The two channels can thereby support each other and form a mechanically strong component.

Conveniently, the filling channel forms together with the ventilation channel of a one-piece plastic molding. This can be made for example of an ABS material.

Preferably, the filling device can be inserted into a housing of the dirty liquid tank. This facilitates the assembly of the hard surface suction device.

It is particularly advantageous if the filling device can be detachably connected to the housing of the dirty fluid tank. This gives the user the ability to separate the filling device from the dirty liquid tank, for example, to completely empty or clean the interior of the dirty liquid tank.

In order to be able to reliably hold the filling device, on the one hand, on the housing of the dirty fluid tank and, on the other hand, to be able to detach it from the housing of the dirty fluid tank in a simple manner, a bayonet connection between the filling device and the housing of the dirty fluid tank is provided in an advantageous embodiment.

It is advantageous if the filling device has a separated liquid from the deposition chamber receiving filling trough, which is followed by the filling channel. Via the filling trough, liquid Separation chamber was separated from the liquid-air mixture, easily flow into the dirty liquid tank. In this case, the filling trough can have a relatively large cross section, so that a relatively large passage can be provided between the separating chamber and the filling device, via which the liquid deposited in the separating chamber can flow into the filling trough.

It is particularly favorable when the ventilation channel passes through the filling trough. In particular, it may be provided that the end of the ventilation channel facing the separation chamber projects beyond the upper edge of the filling trough facing the separation chamber.

In a preferred embodiment, the filling trough can be inserted into an inlet connection of the housing of the dirty liquid tank. Here, between the filling trough and the inlet nozzle, a sealing element, in particular a sealing ring, can be arranged.

In an advantageous embodiment, the filling trough is surrounded by a support ring, which can be placed on an inlet connection of the housing of the dirty liquid tank. The support ring thus forms a stop, which can be applied to an end face of the inlet nozzle. The insertion of the filling device in the dirty liquid tank is characterized very simple and can be carried out easily by the untrained user.

Preferably, a filling funnel arranged at a discharge opening of the separating chamber projects into the filling trough. The hopper may be in Rejuvenate the direction of the filling tray. The hopper ensures in a simple manner that the liquid deposited in the deposition chamber can flow into the filling trough and over the adjoining filling channel into the dirty liquid tank.

As already explained, it can be provided that the contaminant tank can be emptied by removing the filling device. Alternatively or additionally, it may be provided that the dirty liquid tank has a drain opening which can be closed tightly by means of a lid. The drain opening allows the user to drain the dirty liquid tank without having to remove the aeration device from the dirty liquid tank for this purpose.

Preferably, the lid closing the discharge opening is held captive on the housing of the dirty liquid tank.

In an advantageous embodiment of the invention, the dirty liquid tank can be detachably connected to a base housing of the hard surface suction device which accommodates the suction unit. The dirty liquid tank can thus be removed from the basic housing in a simple manner. The basic housing can for this purpose have a receiving compartment into which the dirty liquid tank can be inserted. Preferably, the dirty liquid tank can be latched to the base housing.

In addition to the suction unit, the base housing may preferably also accommodate at least one rechargeable battery, in particular one Lithium-ion battery, which can be used to supply power to the suction unit.

The deposition chamber is preferably designed as a separate component, which is detachably connectable to the suction unit receiving the basic housing. For releasable connection, for example, a snap or locking connection can be used. It can also be provided that the separation chamber can be screwed to the basic housing. The separation chamber can thus be separated from the basic housing by the user in a simple manner, for example to clean the separation chamber. When mounting the Hartflächenabsauggerätes it is only necessary to connect the deposition chamber with the main body, for example, to lock.

Conveniently, the suction nozzle with the deposition chamber is detachably connectable. For example, it can be provided that the suction nozzle can be connected via a snap or latching connection with the deposition chamber. Alternatively, in particular, a screw connection can be used. _, - - - -

It is particularly advantageous if the Hartflächenabsauggerät has a suction unit and in particular at least one rechargeable battery housing basic housing, with a designed as a separate component separation chamber is detachably connected, which in turn can be releasably connected to a suction mouth and a suction nozzle comprehensive suction nozzle , and in addition one also in the form of a paraten component designed dirty fluid tank, which is detachably connectable to the base housing and / or the deposition chamber.

It is particularly advantageous if the suction nozzle has a suction channel which projects into the deposition chamber with a rear end region and is surrounded within the deposition chamber by at least one intermediate storage region over at least a partial region of its circumference. Such a configuration has the advantage that the Hartflächenabsauggerät can also be operated in a position in which the suction nozzle is arranged below the suction unit. In this case, liquid deposited in the deposition chamber may initially accumulate in the at least one intermediate storage area which surrounds at least part of the suction channel projecting into the deposition chamber within the deposition chamber. If the Hartflächenabsauggerät operated at a later time again in an upright position, in which the suction nozzle is arranged above the suction unit, so the first accumulated in the temporary storage area adjacent to the suction channel liquid can flow into the dirty liquid tank.

The suction unit is preferably in fluid communication with the deposition chamber via a vacuum line, wherein a front end region of the vacuum line protrudes into the separation chamber and is surrounded within the separation chamber in the circumferential direction by an annular intermediate storage region. Such an embodiment also makes it possible that, when the orientation of the hard surface suction device is inclined obliquely to the vertical, in particular in a horizontal arrangement in which the suction nozzle is arranged approximately at the same height as the suction unit, half of the deposition chamber deposited liquid can accumulate, which can then flow into the dirty liquid tank in subsequent upright position of the Hartflächenabsauggerätes.

At least one intermediate storage area expediently widens in the direction of the separating device arranged in the separating chamber. This facilitates drainage of liquid that has been temporarily collected in the temporary storage area.

The provision of at least one intermediate storage area in the deposition chamber makes it possible to operate the hard surface extraction device in any position with respect to the vertical. It is therefore particularly suitable for aspirating a water film from window panes. It can be guided along the window pane by the user in the same way as it is already accustomed to the handling of conventional window cleaning devices, in which liquid applied to the window pane is manually removed from the window pane by means of a puller having a rubber lip. Even if the Hartflächenabsauggerät is transferred to a position above the head, there is no risk that liquid can escape from the deposition chamber or from the dirty liquid tank. Even in such a position, an effective suction flow is formed, so that dirt particles and liquid droplets can be reliably removed from a hard surface.

The deposition device arranged in the deposition chamber preferably comprises a baffle wall, which is the end arranged in the deposition chamber the vacuum line covered. As a result, a particularly effective separation effect can be achieved.

The following description of a preferred embodiment of the invention düng is used in conjunction with the drawings for further explanation. Show it:

Figure 1: a perspective view of a Hartflächenabsauggerätes;

FIG. 2: a sectional view of the hard surface suction device from FIG. 2 and FIG

FIG. 3 shows an enlarged sectional view of a dirty fluid tank with a filling device of the hard surface suction device from FIG. 1.

In the drawing, a portable Hartflächenabsauggerät 10 is shown schematically, with which a liquid can be sucked from a hard surface, for example from a window pane. The Hartflächenabsauggerät 10 can be held by the user with one hand on a handle 12 and guided along the manner of a conventional, having a rubber lip puller on the hard surface.

The Hartflächenabsauggerät 10 includes a base housing 14, which forms the handle 12 and a suction unit 16 with a suction turbine 17 and an electric motor 18 receives. Within the base housing 14, at least one rechargeable battery 19 is arranged to supply the power Electric motor 18. On the underside, the base housing 14 forms a base 21 for placing the Hartflächenabsauggerätes 10 on a footprint.

On the side facing away from the handle 12, the base housing 14 forms a receiving compartment 23, which receives a removable from the base housing 14 dirty fluid tank 25, with the base housing 14 known per se and therefore not shown in the drawing releasable locking means with the base housing 14th can be locked. The dirty liquid tank 25 has a substantially cuboid tank housing 26, which is formed in the form of a one-piece plastic molded part and transparent. It comprises a bottom wall 27, from which an end wall 28 and a rear wall 29 upwards, d. h in the bottom wall 27 facing away from the direction. About two side walls, which are also integrally connected to the bottom wall 27 and of which in the drawing (Figure 1) only one side wall 31 can be seen, the end wall 28 is connected to the rear wall 29. On the upper side facing away from the bottom wall 27, the tank housing 26 forms a hollow cylindrical inlet port 30. Adjacent to the inlet nozzle 30, a discharge opening 32 is formed in the end wall 28, which can be closed tightly by means of a cover 33 held captive on the end wall 28. At a distance from the drain opening 32, a retaining pin 34 is integrally formed on the lid 33 to the captive mounting, which is passed tightly through a retaining opening 35 of the end wall 28 and the holding opening 35 engages behind the tank housing 26 with a mushroom-shaped extension 36. In its upper end region remote from the retaining pin 34, the cover 33 has a gripping tab 37 on which it can be grasped by the user in a simple manner in order to release the discharge opening 32.

Into the tank housing 26 projects into a filling device 40, which is made as a one-piece plastic molded part made of a thermoplastic material, such as an ABS material (acrylonitrile-butadiene-styrene) and forms a filling trough 42, which is inserted into the inlet nozzle 30 with the interposition of a sealing ring 43 is. With its protruding from the inlet nozzle 30 edge region of the filling trough 42 forms a support ring 44 which rests on the free end face 46 of the inlet nozzle 30. On the support ring 44 are directed radially outwardly formed two diametrically opposite retaining wings, in Figure 3, only a holding wing 48 can be seen. The retaining vanes 48, in combination with corresponding holding elements formed on the outside of the inlet stub 30, form a bayonet connection known per se and therefore not shown in detail in the drawing, via which the filling device 40 can be detachably connected to the tank housing 26.

The filling trough 42 has a trough bottom 49, to which a filling channel 50 is connected within the tank housing 26. The filling channel 50 dips into the tank housing 26 and has a filling opening 51 at its end facing away from the filling trough 42. The filling opening 51 is arranged approximately centrally between the bottom wall 27 of the tank housing 26 and the inlet nozzle 30. Below the filling opening 51, the tank housing 26 forms a collecting chamber 55, and between the filling opening 51 and the trough bottom 49 of the filling channel 50 is surrounded within the tank housing 26 by an annular escape space 56. The volume of the escape space 56 is at least as large as the volume of the collection space 55. Interpretation of the collecting space 55 and the escape space 5 will be discussed in more detail below.

On the outside, the transparent tank housing 26 carries a marking 52 with a plurality of marking ribs 53 formed on the tank housing 26, at which point the user can read the fill level of the tank housing. An uppermost marking rib 54 is arranged at the level of the lower edge 58 of the filling opening 51 and indicates the maximum permissible filling level of the dirty liquid tank 25. The collecting space 55 extends from the bottom wall 27 up to the level of the uppermost marking rib 54. The escape space 56 extends from an upper edge 59 of the filling opening 51 to the trough bottom 49 of the filling trough 42.

The filling channel 50 is connected in one piece with a ventilation channel 60 of the filling device 40 running parallel to the filling channel 50. The ventilation channel 60 has a ventilation opening 61 at the level of the filling opening 51. He passes through the trough bottom 49 and stands with its upper, the vent opening 61 facing away from the end 62 on the support ring 44 of the filling well 42 out.

On the upper side adjoins the base housing 14 and the dirty liquid tank 25 to a deposition chamber 65, which is connected via a releasable latching connection with the base housing 14. For releasing the latching connection, push-buttons 66 are arranged on the outside of the deposition chamber 65. The deposition chamber 65 has outer walls in the form of a concave curved front wall 68 adjoining the end wall 28 of the tank housing 26, a convexly curved adjoining the handle 12 Rear wall 69 and in the form of the front wall 68 integrally connected to the rear wall 69 side walls, of which in the drawing, namely in Figure 1, only one side wall 70 can be seen. On the side walls 70, a push button 66 is positioned in each case. By simultaneously pressing both push buttons 66, the locking connection between the deposition chamber and the base housing 14 can be solved.

Within the deposition chamber 65, a separation device in the form of a baffle 72 is arranged, which is arcuately curved. On the upper side, the deposition chamber 33 is delimited by a top wall 73 connecting the front wall 68, the rear wall 69 and the two side walls 70 in one piece, to which a receiving shaft 75 protruding into the separation chamber 65 is integrally formed.

On the upper side, a suction nozzle 80, which has a suction channel 81, adjoins the separation chamber 65. The suction channel 81 extends from a suction mouth 83, which is defined by a first flexible wiper lip 84 and a second flexible wiper lip 85, and dives with a rear end portion 87 in the receiving shaft 75 a. At the suction mouth 83 remote from the mouth opening 88 of the suction channel 81, a holding element 90 is arranged, which carries a flat baffle plate 91 at a distance from the mouth opening 88 within the deposition chamber 65.

Starting from the handle 12, the suction nozzle 45 widens transversely to the longitudinal extent of the handle 12, so that the two wiper lips 84, 85 extend over a multiple of the width of the base housing 12 and thus produce a separation. sucking hard surface, in particular a window pane, can cover a large area.

The deposition chamber 65 can be subjected to negative pressure by the suction unit 16. For this purpose, the suction unit 16 is connected via a grip 12 by cross-vacuum line 94 with the separation chamber 65 in flow communication. A front end region 95 of the vacuum line 94 is designed in the form of a pipe socket 96 and protrudes into the deposition chamber 65 on the side of the baffle 72 facing away from the suction channel 81. The orifice 97 of the vacuum line 94 is covered by the convexly curved in the direction of the suction channel 81 baffle 72. Due to the application of negative pressure to the separation chamber 65, starting from the suction orifice 83 via the suction channel 81, the separation chamber 65 and the vacuum line 94, a suction flow is formed. The aspirated suction air can escape from the base housing 14 via exhaust air openings 99 formed laterally into the base housing 14.

As already explained, the Hartflächenabsauggerät 10 can be guided along the hard surface in the manner of a puller for cleaning a hard surface, in particular a window or a glass door, for sucking off liquid. In this case, a liquid-air mixture enters the deposition chamber 65 via the suction mouth 83 and the suction channel 81 and initially strikes the baffle plate 91 arranged at a distance from the mouth opening 88 of the suction channel 81, at which part of the entrained liquid separates. Subsequently, the liquid-air mixture impinges on the baffle wall 72, at which the remaining entrained liquid separates, whereas the sucked-in air flows around the baffle wall 72 and via the vacuum line 94 to the suction wall. aggregate 16 is performed. The deposited within the deposition chamber 65 liquid can flow through the filling trough 42 and the filling channel 50 into the dirty liquid tank 25. For this purpose, the separation chamber 65 has a drain opening 101, on which a discharge funnel 102 is arranged. The discharge funnel 102 tapers in the direction of the dirty liquid tank 25. Below the discharge funnel 102, the filling device 40 with the filling trough 42 and the filling channel 50 is arranged.

In Figures 1 and 2, the Hartflächenabsauggerät 10 is shown in an upright position, in which the suction nozzle 80 occupies a position relative to the vertical position above the suction unit 16. If the hard surface suction device 10 is guided along a surface to be suctioned off in this position, then liquid deposited within the separation chamber 65 can readily reach the drainage opening 101 and the filling device 40 into the dirty liquid tank 25. In this case, the liquid collects in the collecting space 50 arranged below the filling opening 51 of the filling channel 50. The filling level of the dirty liquid tank 25 can be read by the user at the outside marking 52. If the maximum fill level 54 is reached, it can empty the dirty liquid tank 25 via the discharge opening 32.

If the Hartflächenabsauggerät 10 is operated in a horizontal position, in which the suction nozzle 80 is disposed relative to the vertical substantially at the same height as the suction unit 16, or the Hartflächenabsauggerät 10 is operated overhead so that the suction nozzle 80 relative to the vertical below the Suction unit 16 is arranged, so deposited within the deposition chamber 65 liquid can first accumulate in intermediate storage areas of the deposition chamber 33 until the Hartflächenabsauggerät 10 again the upright position shown in Figures 1 and 2 is operated. A first staging area 104 is disposed between the front wall 68 of the deposition chamber 65 and the receiving well 75, and a second staging area 105 is positioned between the rear wall 69 of the deposition chamber 65 and the receiving well 75. Both temporary storage areas 104, 105 continuously expand in the direction of the baffle 72. The two intermediate storage areas 104, 105 extend in the peripheral direction over a part of the rear end area 87 of the suction channel 81.

A third intermediate storage area 106 extends annularly over the entire circumference of the pipe socket 96 within the deposition chamber 65. The third intermediate storage area 106 also widens continuously in the direction of the impact wall 72.

The first and second intermediate storage areas 104, 105 receive liquid deposited in the deposition chamber 65, particularly when the hard surface suction device 10 is in the upside-down position, and the third intermediate storage area 106 absorbs liquid deposited in the deposition chamber 65, in particular when the hard surface suction device 10 is lying, without the liquid There is a risk that separated liquid can pass to the suction mouth 83 via the suction channel 81 or to the suction unit 16 via the vacuum line 94. In addition, even with such a position of the Hartflächenabsauggerätes 10 reliably suction flow from the suction via the suction passage 81 and the separation chamber 65 to the suction unit 16 is maintained. If the hard surface suction device 10 is then operated again in an upright position, then the intermediate collected liquid from the intermediate storage areas 104, 105 and 106 and passes through the drain opening 101 and the filling device 40 in the dirty liquid tank 25th

Since the filling opening 51 is arranged approximately halfway up the dirty liquid tank 25 with reference to the upright position shown in FIGS. 1 and 2, there is no danger that liquid already reached into the dirty liquid tank 25 will be present even when the operation of the hard surface suction device 10 is horizontal or overhead again can flow out of the dirty liquid tank 25. The liquid contained within the dirty liquid tank 25 collects rather in lying or upside down operation of the Hartflächenabsauggerätes 10 in the surrounding the filling channel 50 escape space 56 of the dirty liquid tank 25th

Via the ventilation channel 60 running parallel to the filling channel 50, the dirty liquid tank 25 can be aerated in any position of the hard surface suction device 10, so that air can escape from the dirty liquid tank 25 at any time, which can then be sucked out of the separation chamber 65 via the vacuum line 94.

The Hartflächenabsauggerät 10 can thus be operated in any position relative to the vertical, wherein in the deposition chamber 33 separated liquid can either pass directly through the filling device 40 in the dirty liquid tank 25 or it is first stored in intermediate storage areas 104, 105 and 106 of the deposition chamber 65 until the Hartflächenabsauggerät 10 again an upright position occupies. The intermediate storage areas 104, 105 and 106 may each have a volume of more than 10 ml, in particular a volume of about 20 ml. Regardless of the position that occupies the Hartflächenabsauggerät 10 relative to the vertical, there is no danger that already in the dirt liquid tank 25 liquid flows out of this again. Dirty liquid, which is in the upright position of the hard surface suction device in the collecting chamber 55, is rather taken up by the deflection space 56 of the dirty liquid tank 25 when the hard surface suction device is pivoted out of the vertical. Since the volume of the avoidance space 56 is at least as large as the volume of the collecting space 55, the collecting space 55 can be filled to the maximum, without the risk of liquid flowing out of the dirty liquid tank 25. The volume of the collecting space may be, for example, at least 100 ml.

Claims

1. Hartflächenabsauggerät with a suction nozzle and a suction unit, which is in flow communication with the suction nozzle for sucking a liquid-air mixture from a hard surface, and with a separator for separating liquid from the liquid-air mixture and a dirty liquid tank for receiving the deposited liquid, characterized in that in the flow path between the suction nozzle (80) and the suction unit (16) a separation chamber (65) is arranged, which receives the separation device (72) and which is connected to the dirty liquid tank (25), wherein the flow path from the suction nozzle (80) to the suction unit (16) past the dirty liquid tank (25) and wherein the Hartflächenabsauggerät (10) has a Befüllungseinrich- device (60) with a filling channel (50) having a filling opening (51), and wherein the Dirty liquid tank (25) forms a plenum f For a separated liquid, which is arranged in relation to an upright position of the Hartflächenabsauggeräts (10) below the filling opening (51), and a the filling channel (50) surrounding Ausweichraum (56), the Suction device during the pivoting of the Hartflächenab- (10) from the vertical Position liquid from the plenum (55) receives.

2. Hartflächenabsauggerät according to claim 1, characterized in that the filling channel (50) protrudes into the dirty liquid tank (25) and

the filling opening is arranged inside the dirty fluid tank (25).

3. Hartflächenabsauggerät according to claim 1 or 2, characterized in that the volume of the escape space (56) is at least as large as the volume of the collecting space (55).

4. Hartflächenabsauggerät according to claim 1, 2 or 3, characterized in that the filling opening (51) relative to an upright position of the Hartflächenabsauggerätes (10) is arranged at half the height of the dirty liquid tank (25).

5. Hartflächenabsauggerät according to any one of the preceding claims, characterized in that the dirty liquid tank (25) is transparent and marking elements (53, 54) for reading the level.

6. Hartflächenabsauggerät according to any one of the preceding claims, - characterized in that the filling means (40) in the dirty liquid tank (53) projecting ventilation duct (60) which projects outside of the dirty liquid tank (25) via the filling channel (50) and within the Dirty liquid tank (25) comprises a ventilation opening (61).

7. Hartflächenabsauggerät according to claim 6, characterized in that the ventilation opening (61) relative to the vertical is arranged at the same height as the filling opening (51).

8. Hartflächenabsauggerät according to claim 6 or 7, characterized in that the ventilation channel (60) is arranged laterally next to the filling channel (50).

9. Hartflächenabsauggerät according to claim 6, 7 or 8, characterized in that the filling channel (50) and the ventilation channel (60) together form a one-piece plastic molded part.

10. Hartflächenabsauggerät according to any one of the preceding claims, characterized in that the filling device (40) in a housing (26) of the dirty fluid tank (25) can be inserted.

11. Hartflächenabsauggerät according to claim 10, characterized in that the filling device (40) with the housing (26) of the

Dirty liquid tank (25) is detachably connectable.

12. Hartflächenabsauggerät according to claim 11, characterized in that the Befüllungseinichtung (40) with the housing (26) of the dirty liquid tank (25) via a bayonet connection (48) is releasably connectable.

13. Hartflächenabsauggerät according to any one of the preceding claims, characterized in that the filling device (40) has a separate liquid from the separation chamber (65) receiving the filling trough (42), to which the filling channel (50) adjoins.

14. Hartflächenabsauggerät according to claim 13, characterized in that the filling trough (42) from the ventilation channel (60) is penetrated.

15. Hartflächenabsauggerät according to claim 13 or 14, characterized in that the filling trough (42) in an inlet port (30) of the housing (26) of the dirty fluid tank (25) can be inserted.

16. Hartflächenabsauggerät according to claim 15, characterized in that the filling trough (42) by a support ring (44) is surrounded, which is placed on the inlet nozzle (30).

17. Hartflächenabsauggerät according to any one of claims 13 to 16, characterized in that in the filling trough (42) on a drain opening (101) of the deposition chamber (65) arranged Einfülltrichter (102) protrudes.

18. Hartflächenabsauggerät according to any one of the preceding claims, characterized in that the dirty liquid tank (25) has a drain opening (32) which by means of a lid (33) is tightly closed.

19. Hartflächenabsauggerät according to claim 18, characterized in that the cover (33) on the housing (25) of the dirty liquid tank (25) is held captive.

20. Hartflächenabsauggerät according to any one of the preceding claims, characterized in that the dirty liquid tank (25) with a

the suction unit (16) receiving the main housing (14) of the Hartflä- chenabsauggerätes (10) is releasably connectable.

21. Hartflächenabsauggerät according to claim 20, characterized in that the deposition chamber (65) with the base housing (14) is releasably connectable.

22. Hartflächenabsauggerät according to claim 21, characterized in that the suction nozzle (80) with the deposition chamber (65) is releasably connectable bar.

23. Hartflächenabsauggerät according to any one of the preceding claims, characterized in that the suction nozzle (80) has a suction channel (81), wherein a in the deposition chamber (65) protruding rear end region (87) of the suction channel (81) within the deposition chamber ( 65) in the circumferential direction is at least partially surrounded by at least one intermediate storage area (104, 105).

24. _ Hartflächenabsauggerät according to claim 23, characterized in that the rear end portion (87) of the suction channel (81) in a in the deposition chamber (65) projecting receiving shaft (75) is immersed, wherein the receiving shaft (75) and at least one outer wall (68 , 69) of the deposition chamber (65) define at least one intermediate storage area (104, 105).

25. Hartflächenabsauggerät according to any one of the preceding claims, characterized in that the suction unit (16) via a sub-

pressure line (94) is in fluid communication with the separation chamber (65), wherein a front end region (95) of the vacuum line (94) projects into the separation chamber (65) and within the separation chamber (65) in the circumferential direction of an annular intermediate storage area (106 ) is surrounded.

26. Hartflächenabsauggerät according to any one of claims 23 to 25, characterized in that at least one intermediate storage area (104, 105, 106) widens in the direction of the separation device (72).

27. Hartflächenabsauggerät according to claim 25 or 26, characterized in that the separation device comprises a baffle (72) which covers the in the deposition chamber (65) arranged end (97) of the vacuum line (94).