EP1482829B1 - Cleaning system with a wringing device for a flat wiper - Google Patents

Abstract

A squeezing device for a wiping cover of a flat-body wiper, the wiper cover hanging downward and partially detached from a wiper plate of the flat-body wiper in a vertical position of the wiper plate, the wiper plate including a downward facing pressure surface in the vertical position. The squeezing device includes a funnel-shaped squeezing shaft having a counterpressure surface in a lower region of the squeezing shaft. The squeezing shaft is configured to receive the wiper cover and at least a portion of the wiper plate in the vertical position of the wiper plate so that a squeezing pressure of the pressure surface against the counterpressure surface squeezes out the wiper cover. The squeezing shaft includes stabilizing devices configured to stabilize the wiper plate against tipping relative to a first plane from the vertical position. In addition a cleaning system including the squeezing device and a method of squeezing a wiping cover of a flat-body wiper with the squeezing device.

Description

The invention relates to a cleaning system with a wringer for a mop cover of a flat wiper with a handle which comprises a downwardly conically tapered, substantially funnel-shaped Auswringschacht with mating surfaces, in which the mop cover at substantially vertical position of the wiper plate, partially detached from this and hanging down, inserted from above and can be pressed by pressure on the handle, wherein the wiper plate for squeezing at least partially in the Auswringschacht is inserted, so that their downwardly directed end face forms a contact surface.

State of the art

From the DE 196 20 633 C2 a cleaning device with a flat wiper and a wringer is known. The flat wiper has a handle and a wiper plate, which is connected to the handle via a connecting element with joint on. In the front area of the wiper plate seen in the wiping direction, a clamping device for fastening a mop cover is arranged. In the rear area of the mop cover by pressing down the Tissue held by the wiper plate. To squeeze the mop cover, the flat wiper is lifted with wiper plate from the ground, the wiper plate folds down in a vertical position and the only fixed to the front edge of the wiper plate mop vertically sags down. The mop cover is now inserted in this position perpendicularly from above into the conically widening towards the bottom Auswringkorb, where he puts in wrinkles. By applying pressure to the handle, the mop cover is pressed out over the downwardly facing end face of the wiper plate in the wringing basket. A disadvantage of the known cleaning device that the mop cover must be placed very carefully when inserted into the Auswringkorb to come to the desired folding. Parts of the mop cover, which are not below the contact surface, but laterally on the inner wall of the Auswringschachts come to rest, are not squeezed. Care must also be taken to ensure that the handle is in the vertical position possible when pressure is applied, so that the force applied by the user is converted as effectively as possible into an extrusion force and not directed against the side wall of the wringing shaft, whereby the risk of tipping of the the wringer bearing container consists of cleaning fluid. Another disadvantage is that the mop cover is held in the working position only in the front region of the wiper plate. To slipping the

To avoid mop cover in the rear area, especially with high soil friction, the user must constantly exert a corresponding contact force on the handle during wiping.

From the DE 40 11 713 A1 is a two-piece wiper plate with pivotally mounted on folding axes plate wings known in which the plate wings can be folded vertically for cleaning purposes down. The mop cover is attached only at the ends of the plate wings and hangs in the folded down position of the plate wings looped down through. In this position it can be immersed in a liquid bath and cleaned. Whether or how the mop cover is pressed after the cleaning, the publication can not be found.

Presentation of the invention

The object of the invention is to provide a cleaning system in which the mop cover when inserting into the Auswringschacht is inevitably brought into the optimum for squeezing position, without requiring special handling by the user or that the risk of tipping of the wringer bearing Container exists. The cleaning system is to provide a flat wiper and a wringer in which flat wiper and wringer are coordinated so that the wringing is carried out in a simple and efficient manner, on the other hand, the flat wiper is not affected by the adaptation to the wringer in its function. This object is achieved by a cleaning system with all features of claim 1. Advantageous embodiments of the invention are described in the subclaims.

According to the invention, in the wringer for a flat wiper, which comprises a downwardly conically tapered, substantially funnel-shaped Auswringschacht with mating pressing surfaces in which the mop cover at substantially vertical position of the wiper plate, partially detached from this and hanging down from can be inserted above and pressed out by pressure on the handle, wherein the wiper plate for pressing at least partially inserted into the Auswringschacht so that the downwardly facing end face forms a contact surface, means for stabilizing the wiper plate against tilting during insertion and squeezing in Wringing shaft provided.

The means for stabilizing a wiper plate comprise two mutually opposite first inner walls of the wringing out or first guide elements, in particular vertically extending, rib-like elevations, on these first inner walls and on at least one of the two first inner walls nor second guide elements.

With this measure, the mop cover and the wiper plate are automatically guided already during insertion into the Auswringschacht the Auswringkorbs that the mop cover inevitably brought into a favorable for wringing out position and the force exerted by the user is optimally converted into a contact force on the mop cover. In particular, lateral forces on the walls of the Auswringschachts, which could bring the Auswringvorrichtung carrying containers with cleaning fluid to tilt, avoided.

Characterized in that the first inner walls are the upper or lower side of the wiper plate brought into a vertical position opposite walls, the wiper plate is supported during insertion into the Auswringschacht with their larger surfaces and it is achieved a particularly secure guidance.

Furthermore, the insertion of the mop cover and the wiper plate in the Auswringschacht is facilitated by the fact that the Auswringschacht has at its upper end an upwardly greatly expanding insertion funnel.

So that the cleaning liquid can escape in a simple manner during pressing, the Auswringschacht preferably has outlet openings in the lower region and in the shaft bottom. These may be, for example, groove-shaped openings.

The counterpressure surfaces in the wringing out slot can have raised areas to increase the contact pressure. For example, it has proved to be proven advantageous when the shaft bottom is provided with rib-like elevations.

In a further preferred embodiment of the invention, the wringing device has means for fastening on a container for the cleaning liquid, for example a bucket.

Furthermore, it is advantageous if the wringing device additionally has means for holding the flat wiper in the container.

An inventive cleaning system comprises the wringer in combination with a flat wiper with a handle and a wiper plate with a releasably attachable mop cover.

The wiper plate for squeezing the mop cover can be brought into a substantially vertical position and partially dissolved, down by hanging mop cover from above into the Auswringschacht the wringer, with their downwardly directed end face forms a contact surface, and wherein the means for stabilizing Wiper plate against tilting in a first plane, the two opposing first inner walls of the Auswringschachts include, wherein the distance from each other is dimensioned so that the wiper plate at the same time is supported on both inner walls during insertion into the Auswringschacht.

Likewise, between the first guide elements on these inner walls or between first guide elements on one of the inner walls and the respective other inner wall is dimensioned so that the wiper plate during insertion into the Auswringschacht, as described above, simultaneously supported on both sides. Such first guide elements may be, for example, vertically extending, rib-like elevations on one of the inner walls or on both inner walls.

For complete stabilization of the wiper plate, namely against tilting in a second plane perpendicular to the first plane, the second guide elements are additionally provided on at least one of the two first inner walls, against which corresponding counter-guide elements are supported on the wiper plate.

In the embodiment described above, the first guide elements can be designed so that they take over the function of the second guide elements with. This is most easily realized by forming the guide elements as vertically extending, rib-like elevations on the first inner walls of the Auswringschachts, which are positioned so that they can be brought into engagement with the corresponding counter-guide elements on the wiper plate.

The height of the wringing out shaft is advantageously dimensioned such that the wiper plate with its lower end already dips into the upper region of the wringing shaft and is in engagement with the devices for stabilizing the wiper plate against tilting when the mop cover touches the bottom of the wringing device. This largely ensures that the force to be exerted on the handle for compressing the mop cover in the wringing shaft can not lead to tilting of the wringer even when the handle is not completely vertical.

In a two-part wiper plate with fold-down plate wings and loop-down sagging mop cover, as will be described in more detail below, results in conventional dimensions for such a wiper plate for the loop-shaped downward sagging mop cover a height of the loop of about 15 cm , The height of the wringing shaft should be greater than 15 cm for such a wiper plate. It has been found that an immersion depth of about 1 cm for the lower Ends of the wiper blade is already sufficient to achieve sufficient stabilization against tilting. The Auswringschacht should therefore have a height of at least about 16 cm for this embodiment.

A particularly efficient conversion of the force exerted by the user on the handle of the flat wiper force in a contact pressure is achieved in that the Auswringschacht is dimensioned so that the guide surfaces forming inner walls and the arrangement of the guide elements to a brought about their longitudinal axis in a vertical position wiper plate are adjusted. In this case, the downwardly facing comparatively small end face forms the contact surface.

The same applies to a two-part wiper plate with folded around the shorter transverse axis down plate wings. The contact surface is formed in such an embodiment by the two end faces of the downwardly folded wiper plate wings. In contrast to the above-mentioned, known from the prior art cleaning system in which the wiper plate is folded down about its longitudinal axis and the contact surface is formed by the side surfaces of the wiper plate wings, results in the folded around the transverse axis wiper plate by a factor 4 higher contact pressure.

The wringer can be used not only in combination with a flat wiper with one-piece wiper plate, but particularly advantageous for a known flat wiper of the type described in the introduction with two-piece wiper plate with two mutually hinged plate wings and a mop cover facing the outward Ends of the plate wings is releasably attachable, wherein the plate wings for cleaning the mop cover in a cleaning liquid in a substantially vertical parallel position are folded down, so that the mop cover sags down in a loop. According to the invention, the flat wiper is inserted in this position with folded-down plate wings and loop-shaped downwardly suspended mop cover from above into the wringing out of the wringing device.

Regarding the dimensions and arrangement of the guide surfaces and guide elements in Auswringschacht the wringer and the other preferred embodiments of the wringer applies in the cleaning system according to the invention with a flat wiper with two-piece wiper plate that in place of the top or bottom of the brought into a vertical position one-piece wiper plate and of the downwardly drooping mop cover now the vertically aligned tops of the two folded down plate wings and the loop-shaped down-sagging mop cover occur.

Particularly advantageously, the wringer can be used for a flat wiper with a two-piece wiper plate of the type described, which in addition to the hinged plate wings still has a central part fixedly connected to the handle. Such a central part may be formed on the surface to be cleaned facing side as a functional surface with an additional cleaning function, which is actuated by exerting pressure on the handle. Preferably, the functional surface is designed as a "scrubber" surface for releasing stubborn contaminants and has a structuring for this purpose. In this case, the ratio between the raised areas formed by the structuring to the total area of the wiper plate is advantageously between 1:10 and 1: 100, more preferably about 1:50. At a ratio of 1:50, the structured functional area is approximately the same contact pressure on the surface to be cleaned as when using a scrubber achieved. The structuring may, for example, be in the form of ribs which may be arranged perpendicularly or, at an angle to the wiping direction, in order to produce independence from the wiping direction. So that structured functional surface can be effective under the mop cover, the ratio between the thickness of the mop cover and the structure height should be between 2 and 1.

In a further advantageous embodiment of the invention, the plate wings of the two-part wiper plate on its underside supporting elements, which stabilize both plate wings in folded down parallel position against relative movement in the plane of the plate. Such support elements may be, for example, elevations on the underside of one plate part, which engage in folded-down position in corresponding recesses on the underside of the other plate part.

Advantageously, the plate wings can be locked by means of a lock in aligned working position. The handling is in this case particularly simple when the locking is done automatically when pivoting the plate wings in the working position and for releasing the lock, for example, an operable by means of a foot lever is provided. Locking devices with the described properties are known and widely described in the literature.

The handle of the flat wiper may be connected to the wiper plate via a joint, preferably via a universal joint. For pressing, it is advantageous if the joint is at least partially lockable, for example by means of ball thrust pieces.

The mop cover, whose shape corresponds approximately to the shape of the wiper plate, has on its underside a cleaning fabric. There are no restrictions on the type or design of the cleaning fabric. The mop cover is releasably securable in the edge regions of the wiper plate, ie at the outer ends of the plate wings. In a preferred embodiment of the invention, the mop cover at its shorter ends so-called retaining tabs, which the outer ends of the plate wings overlap in the edge area. These retaining tabs are placed around the outer ends of the plate wings and preferably fastened by means of a Klettver statements on the top of the plate wings in the edge region. But there are also other mounting options conceivable, such as snaps.

In a further preferred embodiment of the invention, the cleaning system according to the invention comprises a container for receiving the cleaning liquid, in the upper region of the wringing device according to the invention can be fastened. Appropriately, holding means are also provided for parking the flat wiper in the container.

Brief description of the drawing

Fig. 1

in perspektivischer Darstellung eine Auswringvorrichtung als Teil eines Reinigungssystems gemäß der Erfindung,

Fig. 2

in Seitenansicht einen Flachwischer mit heruntergeklappten Plattenflügeln und nach unten schlaufenförmig durchhängendem Wischbezug,

Fig. 3

die Unterseite der Wischerplatte des Flachwischers aus Fig. 2,

Fig.4

in perspektivischer Darstellung in Vorderansicht ein erfindungs- gemäßes Reinigungssystem, umfassend einen Flachwischer mit Wischerplatte und eine Auswringvorrichtung.

The invention will be explained in more detail with reference to the accompanying drawings. Show it

Fig. 1

a perspective view of a wringer as part of a cleaning system according to the invention,

Fig. 2

in side view a flat wiper with folded down plate wings and downwardly looped through mop cover,

Fig. 3

the underside of the wiper plate of the flat wiper Fig. 2 .

Figure 4

in perspective view in front view of an inventive cleaning system, comprising a flat wiper with wiper plate and a wringer.

Embodiment of the invention

One recognizes in FIG. 1 a wringer 1 with Auswringschacht 2 with opposite inner walls 7 a, 7 b and 8 a, 8 b. The Auswringschacht 2 has a downwardly conically tapered, substantially funnel-shaped shape. In the lower area are the counter-pressing surfaces and outlet openings 3 for discharging the pressed out of the mop cover cleaning liquid. In the upper part of the wringing shaft 2, guide elements 4a are still visible, on which corresponding counter-guide elements are supported on the wiper plate. At the Auswringschacht 1 closes at the top an introduction funnel 5 at. This widens conically towards the top and serves as an insertion aid for the mop cover with wiper plate. On two opposite side surfaces of the insertion funnel 5 rectangular openings 6 are arranged, in which engage the two ends of a fixedly connected to the handle center piece of the wiper plate of a flat wiper during insertion into the Auswringschacht 1. The distance between the side walls 7 a and 7 b of Auswringschachts 1 is dimensioned in the present embodiment so that the wiper plate during insertion into the Auswringschacht 1 on both walls simultaneously supported and thus against tilting in the direction of the side walls 7 a and 7 respectively b is stabilized. A tilting in a direction perpendicular to it is prevented by the guide elements 4 a in Auswringschacht 1 and the counter-guide elements 4 b on the wiper plate.

The wringer out FIG. 1 is preferably used for a flat wiper, as in FIG. 2 is shown. One recognizes in FIG. 2 the mop head of such a flat wiper. In particular, the two-part wiper plate 10, the mop cover 20 and the lower region of the handle 30, which is fixedly connected to the center piece 11 of the wiper plate via a hinge 16, can be seen. The two-part wiper plate 10 consists of axes 18 a, 18 b against each other pivotable plate wings 10 a, 10 b, at the lower ends of the retaining tabs 20 b of the mop cover 20 are releasably secured by a hook and loop fastener. In the FIG. 2 are the two plate wings 10 a, 10 b folded downwards, whereby the mop cover 20 with the cleaning fabric 20 a loop-shaped downwards sags. The mop cover is in Auspressstellung. The middle piece 11 has, as from FIG. 3 it can be seen on the bottom of a functional surface 12, which is formed in the illustrated embodiment without loss of generality so that it serves to remove stubborn contaminants. For this purpose, the functional surface 12 on rib-like elevations 12.1. The functional surface 12 can be actuated by pressure on the handle 30.

FIG. 4 shows the operation of the wringer 1 from FIG. 1 for a cleaning system according to the invention. In FIG. 4 is the wiper plate 10 in folded down, vertical position of the plate wings 10 a, 10 b with loop-shaped down by hanging mop cover 20 already partially inserted into the wringing device 1. It can be seen that the mop cover 20 is already partially in the wringing shaft 2 of the wringing device 1. The mop cover 20 is pushed so far into the Auswringschacht 2 until it touches the bottom area with counterpressure surfaces. For wiping the mop cover 20, the wiper plate 10 is then pushed by applying a force on the handle 30 in the Auswringschacht 2, wherein its lower end surface compresses the squeegee 20 and squeezes out. When inserted into the Auswringschacht 2, the wiper plate is supported with the tops 10 a, 10 b of their folded down plate leaf on the inner walls 7 a, 7 b of the Auswringschachts 2 and is thus stabilized against tilting in the direction of these walls. Upon further insertion, the wiper plate 10 is further supported with its counter guide elements 4 b on the corresponding guide elements 4 a on the inner wall 7 a of the Auswringschachts 2 against tilting in the direction of the walls 8 a, 8 b of the Auswringschachts 2 down. The wiper plate 10 is thereby guided safely and stably during the wringing out in the wringing shaft.

Claims (23)

1. Cleaning system, comprising a flat wiper with a handle (30), a wiper plate (10) and a wiping cloth (20) which can be fastened releasably to the wiper plate (10), and comprising a wringing device (1), wherein the wringing device (1) comprises a substantially funnel-shaped wringing shaft (2) which tapers conically downwards and has counter pressing surfaces, wherein the wiping cloth (20) is partially released from the wiper plate (10), when the latter is in a substantially vertical position, and, hanging downwards, can be inserted from above into the wringing shaft (2) and can be squeezed out by pressure being applied to the handle (30), wherein, for the squeezing-out operation, the wiper plate (10) can be at least partially inserted at the same time into the wringing shaft (2) such that the downwardly directed end surface of said wiper blade forms a press-on surface, wherein devices for stabilizing the wiper plate (10) against tilting in a first plane are provided, said devices comprising two mutually opposite first inner walls (7a, 7b) of the wringing shaft (2) or first guide elements on said first inner walls (7a, 7b), wherein the distance of said guide elements from each other is dimensioned in such a manner that, upon insertion into the wringing shaft (2), the wiper plate (10) is supported on both inner walls (7a, 7b) or on the inner walls (7a, 7b) at the first guide elements fitted on both sides, or is simultaneously supported on both sides on one of the two inner walls (7a, 7b) at the first guide elements and on the other inner wall, characterized in that, for the purpose of stabilizing against tilting in a second plane perpendicular to the first plane, second guide elements (4a) are also provided on at least one of the two first inner walls (7a, 7b) and corresponding mating guide elements (4b) on the wiper plate (10) are supported on said second guide elements (4a).
2. Cleaning system according to Claim 1, wherein the upper end of the wringing shaft (2) has an insertion funnel (5) which becomes much wider upwards.
3. Cleaning system according to either of Claims 1 and 2, wherein the wringing shaft (2) has outlet openings (3) in the lower region and in the shaft base.
4. Cleaning system according to Claim 3, wherein the outlet openings (3) are groove-shaped apertures (3).
5. Cleaning system according to one of Claims 1 to 4, wherein the counter pressing surfaces have raised regions in order to increase the squeezing-out pressure.
6. Cleaning system according to Claim 5, wherein the shaft base has rib-like elevations.
7. Cleaning system according to one of the preceding claims, wherein the upper region of the wringing shaft (2) has two mutually opposite, substantially rectangular apertures (6) which, upon insertion of the wiper plate (10) into the wringing shaft (2), can be reached through by the two ends of a central part (11) of the wiper plate (10), which central part is connected fixedly to the handle (30).
8. Cleaning system according to one of the preceding claims, wherein the height of the wringing shaft (2) is dimensioned in such a manner that at least the lower end of the vertically aligned wiper plate (10) is in engagement with the devices for stabilizing the wiper plate (10) against tilting even as the wiping cloth (20) touches the base of the wringing device (1).
9. Cleaning system according to one of the preceding claims, wherein the flat wiper has a two-part wiper plate (10) with two plate wings (10a, 10b), which are foldable to each other, and with a wiping cloth (20) which can be fastened releasably to the two outwardly pointing ends of the plate wings (10a, 10b), and in that, for wringing-out purposes, the plate wings (10a, 10b) can be folded downwards into a substantially vertical, parallel position, with the wiping cloth (20) sagging downwards in a loop-shaped manner.
10. Cleaning system according to Claim 9, wherein the wiper plate (10) is foldable along the shorter transverse axis thereof.
11. Cleaning system according to one of the preceding claims, wherein the wiper plate (10) has a central part (11) which is connected fixedly to the handle (30).
12. Cleaning system according to Claim 11, wherein the central part (11) is designed on the side facing the surface to be cleaned as a functional surface (12) which is actuable by pressure being exerted on the handle (30).
13. Cleaning system according to Claim 12, wherein the functional surface (12) is provided with texturing in order to detach tenacious contaminants, wherein the ratio of the raised regions formed by the texturing to the overall surface of the wiper plate is between 1 : 10 and 1 : 100, preferably approximately 1 : 50.
14. Cleaning system according to Claim 13, wherein the raised regions are ribs (12.1).
15. Cleaning system according to one of Claims 9 to 14, wherein the lower sides of the plate wings (10a, 10b) of the wiper plate (10) have supporting elements (17a, 17b) which stabilize the two plate wings (10a, 10b) in the downwardly folded, parallel position against a relative movement in the plate plane.
16. Cleaning system according to Claim 15, wherein the supporting elements are elevations (17a) on the lower side of the one plate part (10a) which, in the downwardly folded position, engage in corresponding depressions (17b) on the lower side of the other plate part (10b).
17. Cleaning system according to one of Claims 9 to 16, wherein the two plate wings (10a, 10b) can be retained in an aligned operating position by means of a lock (13).
18. Cleaning system according to one of Claims 9 to 17, wherein the handle (30) is connected to the wiper plate (10) via a cardan joint (16).
19. Cleaning system according to Claim 18, wherein the joint (16) between the handle (30) and the wiper plate (10) is at least partially lockable for the squeezing out of the wiping cloth (20).
20. Cleaning system according to Claim 19, wherein the joint (16) is partially lockable by means of spherical pressure pieces.
21. Cleaning system according to at least one of Claims 9 to 20, wherein the wiping cloth (20) is fastenable to the wiper plate (10) by means of retaining tabs (20b) which engage over the outer ends of the two plate wings (10a, 10b) in the edge region.
22. Cleaning system according to Claim 21, wherein the retaining tabs (20b) are fastenable to the wiper plate (10) by means of a touch-and-close fastener.
23. Cleaning system according to at least one of the preceding claims, characterized in that said cleaning system furthermore has a container (40) for holding the cleaning liquid, and the wringing device (1) is fastenable in the upper region of said container, and in that the retaining means are provided to hold the flat wiper in the container (40).

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