DE102007052982A1 - Cleaning device i.e. suction cleaning device, for use in handle-guided household-vacuum cleaner for floor cleaning i.e. wet floor cleaning, has cleaning cover fixedly attached to hollow body, and liquid barrier provided below cover - Google Patents

Abstract

The device (1) has a cleaning roller comprising a roller axle on which a tubular cleaning element is removably attached. A tubular soft-foam material-hollow body is provided in the cleaning element. A cleaning cover is fixedly attached to the foam material hollow body, where the hollow body is made of closed-porous foam material. A liquid barrier is provided below the cleaning cover. A sliding layer is formed in the free inner surface of the cleaning element, where the sliding layer is a textile layer. A clutch drive attached at the cleaning element is made of hard plastic.

Description

The Invention relates first to a cleaning device, preferably cleaning device for floor cleaning, in particular for wet floor cleaning, with a cleaning roller, the cleaning roller a roll axis, on which a tubular Removable cleaning element is applied, which cleaning element having a tubular soft-foam hollow body.

Of Furthermore, the invention relates to a cleaning roller for a cleaning device, preferably for a cleaning device for floor cleaning, especially for wet floor cleaning, wherein the cleaning roller has a roller axis on which a tubular Removable cleaning element is applied, which cleaning element having a tubular soft-foam hollow body.

Cleaning equipment or cleaning rollers of the type in question are known. So is in the DE 82 13 449 U1 describes a cleaning element in roll form, which has a foamed on a carrier foam hollow body. This is a soft elastic foam for the immediate incorporation of, for example, powdered detergents in home textiles, such as upholstery fabrics, carpets, etc. Next is from the DE 199 45 281 A1 a cleaning tool is known, which has a processing roller. The latter is formed from a roll core and a tubular sheath, which sheath consists of a polishing material.

in the With regard to the known prior art is a technical Problem seen in it, a cleaning device and a Cleaning roller of the type in question in particular as regards the cleaning effect to improve.

These The problem is first and foremost with one Cleaning device of the type in question by the features of claim 1 and in a cleaning roller of the person in question Kind solved by the features of claim 2, wherein in each case it is turned off that on the outside on the foam hollow body and firmly attached to this a cleaning cover is applied, wherein provision is made that moisture the foam hollow body can not penetrate. According to this embodiment is a cleaning device and a cleaning roller of the type in question, which or which by an improved cleaning effect distinguished. The cleaning reference is according to this embodiment supported on the inside by the foam hollow body, so that by the weight of the cleaning device a Deformation in the manner of a flattening of the cleaning roller in the contact area is reached to the floor to be cleaned. The resulting flattening the cleaning roller determines the effective width of a here adjusting wiping edge of the roller. The cleaning serving reference is supported accordingly on a soft layer. Relative displacements between cleaning cover and foam hollow body are excluded by the firm connection of these two layers. Accordingly, the cleaning cover with respect to the foam hollow body acts slip. The cleaning cover can be a two-dimensional or also three-dimensional fiber composite structure act. Next can Also, the cleaning cover tube-like design and insoluble be attached to the foam hollow body, so on for example by means of an adhesive connection. Next alternative The cleaning reference can also on the foam hollow body wound up using an adhesive bond. The chosen one Connection form, in particular an adhesive connection between cleaning cover and foam hollow body is in a further preferred embodiment of the subject invention insoluble, especially not non-destructively detachable. A such adhesive bond is also water resistant. There are also provisions hit, indicating the ingress of water or cleaning fluid the cleaning cover in the underlying foam layer prevented. The foam hollow body is corresponding not designed to store liquid.

Further Features of the invention are below, also in the figure description, often in their preferred assignment to the subject of the claim 1 or claim 2 or to features of further claims explained. But you can also do it in an assignment to only individual features of claim 1 or claim 2 or the respective further claim or each independently be significant.

Thus, it is provided in a development of the subject invention that the foam hollow body consists of a closed-cell foam. As a result, a moisture barrier between cleaning cover and foam hollow body is achieved. The thus created foam hollow body is not suitable to absorb liquid. Alternatively, the foam hollow body also consist of an open-cell foam, in which case a liquid barrier is provided below the cleaning reference. Such a liquid barrier may be formed by an adhesive which simultaneously fixes the cleaning cover on the foam hollow body. Alternatively, a water-impermeable intermediate layer in the form of a film or the like. Vorgese be.

In a development of the subject invention is provided that the free inner surface of the cleaning element, in particular the free inner surface of the foam hollow body a sliding layer is formed. This is an improved handling when mounting the cleaning element on the device side Roll axis reached. So can continue the sliding layer a textile layer be, this, for example, in the form of a supporting tissue, which In addition, the cleaning element an additional dimensional stability gives.

In the cleaning element is for non-rotatable interaction with the Roll axle mounted a Kupplungsmitnehmer. This consists in preferred embodiment of an annular element, the wall inside rotatably with the foam hollow body, optionally determined with the interposition of the sliding layer. The coupling driver can in this case further aligned in the axial direction, have gaps leaving gaps in the circumferential direction. The Torque transmission from roll axis to the cleaning element is reached over in the spaces between the webs engaging toothed webs of the roll axis.

In Preferred embodiment of the coupling driver is inside arranged the cleaning element associated with a free end, more preferably assigned to the Aufsteckrichtung of the cleaning element on the roll axis considered rear end. With appropriate Arrangement of the axis-side coupling toothing, the cleaning element side Kupplungsmitnehmer also, for example, in the middle of the longitudinal extent be arranged of the cleaning element.

After all It is envisaged that the clutch driver made of a hard plastic part exists, so on, in particular in the form of a plastic injection molded part.

below the invention with reference to the accompanying drawings, which merely illustrates two embodiments, closer explained. It shows:

1 a cleaning device of the type in question in perspective view;

2 a schematic representation of the arrangement of several cleaning rollers of the type in question in the cleaning device;

3 a cleaning element of the cleaning roller in perspective, partially cutaway view, relating to a first embodiment;

4 the section according to the line IV-IV in 3 ;

5 in a perspective view of a roll axis of the cleaning roller for the rotary driving of the attachable cleaning element in a perspective view;

6 one of the 4 corresponding cross-sectional representation, but concerning an operating position;

7 one of the 3 corresponding individual perspective view of the cleaning element, a second embodiment concerning;

8th the section according to the line VIII-VIII in 7 ,

Shown and described is first with reference to 1 a cleaning device 1 in the form of a Saugreinigungsgerätes for wet floor cleaning in the manner of a header 2 for a stalk-operated domestic vacuum cleaner here 3 , The latter has a basic housing in the usual form 4 in which a suction / blower unit, not shown, is arranged. About this a suction air flow is achievable.

On the base housing 4 of the vacuum cleaner 3 is a, not shown filter bag receiving cassette 5 hinged. The filter bag is used to filter the dirt-laden suction air.

To guide the cleaning device 1 points the vacuum cleaner 3 one at the base housing 4 fixed stalk 6 on. This carries a handle at the end 7 , The electrical supply is via a in the handle 7 incoming electric cable 8th ,

The cleaning device 1 is about a turn / tilt joint 9 on the vacuum cleaner 3 connected both electrically and fluidically. The joint 9 offers the possibility of tilting and twisting the vacuum cleaner 3 opposite the cleaning device 1 in the course of the usual work.

The cleaning device 1 is underside with three the chassis floor 10 penetrating and in the operating position on the floor to be cleaned 11 resting cleaning rollers 12 . 12 ' Mistake. There are two cleaning rollers in this regard 12 and a Nachwischwalze 12 ' intended. These rollers support the cleaning device 1 on the floor to be cleaned 11 from.

The rollers all extend transversely to the usual direction of travel r and accordingly also transversely to this direction of travel r opposite Rich tion r ', which directions of movement r and r' from the usual working movement of the user of a vacuum cleaner results, namely generally alternately back and forth, this further possibly with slight dodging out of the linear, so as to edit a next track.

The cleaning rollers 12 are on the one hand the forehead area 14 of the device and the other the rear area 15 assigned. In this backward area 15 is the upper side of the mentioned turn / tilt joint 9 educated.

The cleaning rollers 12 as well as the Nachwischwalze 12 ' extend approximately over the entire transversely to the direction of travel r or r 'considered device width.

According to the above-described arrangement is in each case a cleaning roller 12 arranged at a movement of the device in the direction of travel r front. When changing the direction of travel is the other cleaning roller 12 positioned in front.

The parallel aligned axes of the cleaning rollers 12 and the Nachwischwalze 12 ' are positioned so that the rollers span a common support plane on the underside.

Every cleaning roller 12 is a suction area 16 assigned, this further in each case related to the direction of travel r or r 'immediately upstream. The down towards the floor to be cleaned 11 directed, open Absaugbereiche 16 continue in under the device hood 17 guided canal-like suction routes 18 in one in the turn / tilt joint 9 go over shaped channel.

The Nachwischwalze 12 ' is actively driven. This is done in the device 1 integrated electric motor.

The two cleaning rollers 12 are against the Nachwischwalze 12 ' not actively driven. Rather, the cleaning rollers 12 at one end with a gear 19 provided, which has a circumferential saw toothing. The se saw toothing acts together with a chassisseitig set, rebounding trained locking finger 20 , From the opposing teeth of the two gears 19 the cleaning rollers 12 arise in connection with the corresponding acting latching fingers 20 Directional rotation of the cleaning rollers 12 or blockages, wherein a rotation of a wiping roller alone by frictional engagement with the ground to be processed 11 in the course of tillage and the associated displacement of the device is achieved.

The saw teeth are chosen so that when advancing the device 1 in the direction of travel r, the front cleaning roller 12 blocked while the rear cleaning roller 12 with ratchet-like evasion of the locking finger 20 rotates freely over the saw toothing. In the opposite direction of travel, the state reverses.

Through the respective blocking cleaning roller 12 this is operated statically in this state. This means that they are at a standstill over the soil to be cleaned 11 is pushed. This results in a wiping edge along the line of contact between the cleaning roller 12 and the soil to be cleaned 11 one. This wiping edge takes over the cleaning of the soil 11 by moving this temporary edge relative to the ground 11 , which dissolves, binds and removes the dirt.

In 3 is the cleaning roller 12 shown in an embodiment. The following remarks regarding the cleaning roller 12 are also on the Nachwischwalze 12 ' transferable.

The cleaning roller 12 initially has a tubular cleaning element 21 on. The axial length of the cleaning element 21 is about seven times the cleaning element diameter.

The cleaning element 21 has first one, a support body forming, tubular hollow body 22 made of a soft foam on. In the in the 3 to 6 shown first embodiment, this is a hollow body 22 from a closed-cell foam. Its inner, free diameter corresponds to about half the outer diameter of the entire cleaning element 21 wherein a thickness of the foam measured transversely to the longitudinal extent corresponds to approximately one tenth of the cleaning element diameter.

On the outside of the integrally formed foam hollow body 22 is a cleaning reference 23 applied. This is a fiber composite, the hollow body 22 wrapped around this is fixed. The determination is made in the illustrated embodiment by means of bonding. The spirally extending longitudinal edges in the course of wrapping 13 of the cleaning cover 23 butt against each other, do not overlap accordingly. The transverse to the longitudinal extent of the cleaning element 21 measured thickness of the cleaning cover 23 is about one to three times the foam thickness.

The inner surface of the cleaning element 21 or the hollow body inner surface of the foam part is with a sliding layer 24 covered by a supporting tissue. This sliding layer 24 is inside of the hollow body 22 attached to the foam, further adhesive-bonded, for example. This sliding layer 24 facilitates handling when sliding the cleaning element 21 on the roll axis 25 , Furthermore, this results in a high dimensional stability of the cleaning element 21 reached.

Next is inside of the cleaning element 21 , specifically on the inside of the sliding layer 24 in the region of a free end of the cleaning element 21 a clutch driver 26 arranged. This is formed as a hard plastic part, further prepared for example in plastic injection molding.

The coupling driver 26 is sleeve-like shape with an outer diameter, the inner diameter in the region of the sliding layer 24 equivalent. The inner diameter is the outer diameter of the roll axis 25 customized.

The coupling driver 26 is rotationally fixed in the cleaning element 21 held, so for example by an adhesive bond with the sliding layer 24 ,

Cavity side is the coupling driver 26 with aligned in the axial direction, evenly distributed over the circumference arranged Mitnehmerstegen 27 provided, each leaving a distance between them.

In the 5 in a single representation shown roller axis 25 has a coupling teeth in the region of a free end 28 on. This is with Gegenmitnehmern 29 provided in the between the driving webs 27 of the cleaning element 21 left gaps intervene positively, this at a selected outer diameter of the roll axis 25 , the inner diameter of the sleeve-like Kupplungsmitnehmers 26 equivalent.

The roll axis 25 is when arranging a cleaning roller 12 moved stepwise over the described gear-locking finger assembly. About the clutch driving is a rotationally fixed connection to the cleaning element 21 reached.

Through the foam carrier for the cleaning cover 23 becomes the cleaning roller 12 or the cleaning element 21 in operating position (shown schematically in 6 ) by the weight P of the cleaning device 1 deformed. The resulting flattening of the cleaning roller 12 on the floor to be cleaned 11 determines the effective width of the wiper edge. The degree of flattening is in addition to the weight of the device depending on the inherent stability of the hollow body 22 ,

As a result, in the first exemplary embodiment, a closed-cell foam for shaping the hollow body 22 is used, is below the cleaning reference 23 formed a liquid barrier. Accordingly, the foam hollow body 22 not designed to absorb liquids or to provide liquid.

Alternatively, this liquid barrier as in the embodiment in the 7 and 8th to recognize, by a separate barrier layer 30 be achieved, so for example with the interposition of a film layer between foam hollow body 22 and cleaning reference 23 , In the simplest embodiment, this barrier layer 30 also the adhesive layer for fixing the cleaning cover 23 on the hollow body 22 be. When arranging such a separate barrier layer 30 can the hollow body 22 be formed of an open-cell foam.

The cleaning element 21 is by peeling off the roll axis remaining in the device 25 from the cleaning device 1 removable and can be supplied according to the above-described embodiment as a whole of a separate cleaning, for example, hand cleaning or washing machine cleaning.

All disclosed features are essential to the invention (in itself). In the disclosure of the application is hereby also the disclosure content the associated / attached priority documents (Copy of the advance notice) fully included, too for the purpose, features of these documents in claims present Registration with.

1

cleaner

2

header

3

vacuum cleaner

4

Headers

5

cassette

6

stalk

7

handle

8th

electric cable

9

joint

10

chassis ground

11

ground

12

cleaning roller

12 '

Nachwischwalze

13

Longitudinal edge

14

forehead

15

rear Area

16

suction

17

device hood

18

exhaust path

19

gear

20

latching fingers

21

cleaning element

22

Hollow foam body

23

cleaning cover

24

gliding

25

roll axis

26

coupling driver

27

entrainment

28

coupling teeth

29

counter driver

30

junction

P

weight force

r

traversing

r '

traversing

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 8213449 U1 [0003]
• - DE 19945281 A1 [0003]

Claims (9)

Cleaning device ( 1 ), preferably cleaning device for floor cleaning, in particular for wet floor cleaning, with a cleaning roller ( 12 ), wherein the cleaning roller ( 12 ) a roll axis ( 25 ), on which a tubular cleaning element ( 21 ) is removably applied, which cleaning element ( 21 ) a tubular soft-foam hollow body ( 22 ), characterized in that on the outside of the foam hollow body ( 22 ) and fixedly connected to this a cleaning reference ( 23 ), wherein provisions are made that moisture the foam hollow body ( 22 ) can not penetrate. Cleaning roller ( 12 ) for a cleaning device ( 1 ), preferably for a cleaning device for floor cleaning, in particular for wet floor cleaning, wherein the cleaning roller ( 12 ) a roll axis ( 25 ), on which a tubular cleaning element ( 21 ) is removably applied, which cleaning element ( 21 ) a tubular soft-foam hollow body ( 22 ), characterized in that on the outside of the foam hollow body ( 22 ) and fixedly connected to this a cleaning reference ( 23 ), wherein provisions are made that moisture the foam hollow body ( 22 ) can not penetrate. Cleaning device or cleaning roller according to claim 1 or claim 2 or in particular according thereto, characterized in that the foam hollow body ( 22 ) consists of a closed-cell foam. Cleaning device or cleaning roller according to one or more of the preceding claims or in particular according thereto, characterized in that below the cleaning cover ( 23 ) A liquid barrier is provided. Cleaning device or cleaning roller according to one or more of the preceding claims or in particular according thereto, characterized in that the free inner surface of the cleaning element ( 21 ) by a sliding layer ( 24 ) is formed. Cleaning device or cleaning roller according to one or more of the preceding claims or in particular according thereto, characterized in that the sliding layer ( 24 ) is a textile location. Cleaning device or cleaning roller according to one or more of the preceding claims or in particular according thereto, characterized in that on the cleaning element ( 21 ) a clutch driver ( 26 ) is attached. Cleaning device or cleaning roller according to one or more of the preceding claims or in particular according thereto, characterized in that the coupling driver ( 26 ) inside the cleaning element ( 21 ) is arranged assigned to a free end. Cleaning device or cleaning roller according to one or more of the preceding claims or in particular according thereto, characterized in that the coupling driver ( 26 ) consists of a hard plastic part.