WO2012045316A1

WO2012045316A1 - Mop

Info

Publication number: WO2012045316A1
Application number: PCT/EP2010/006035
Authority: WO
Inventors: Uwe Dingert; Markus Dietz; Helmut Hofmeister; Christian Kalt; Pieter Van De Kamp
Original assignee: Carl Freudenberg Kg
Priority date: 2010-10-04
Filing date: 2010-10-04
Publication date: 2012-04-12

Abstract

The invention relates to a mop (1) having a handle (2) and a wiping device (3) arranged at the lower end of the handle (2), having a wiping plate (4) and a wiping pad (4.1), as well as a sliding sleeve (5) mounted on the handle (2) such that it can be displaced in the longitudinal direction of the latter, and having a squeezing device which can be moved from a wiping position into a squeezing position by displacing the sliding sleeve (5), the wiping plate (4) having two pivotably mounted wiping plate wings (4.2, 4.2), which can be folded together and pressed against each other by displacing the squeezing device into the squeezing position. The invention is characterized by the fact that the squeezing device is designed as a squeezing housing (6), which has side faces (6.1, 6.1, 6.2, 6.2) and an opening (7) facing the wiping device (3), through which opening the folded-together wiping plate wings (4.2, 4.2) can be introduced at least partly into the squeezing housing (6).

Description

Wiper description

Technical area

The invention relates to a wiper with a handle and arranged at the lower end of the handle wiper device with a wiper plate and a wiper pad and a slidably mounted in the longitudinal direction of the handle sliding sleeve with a squeezing device, which can be brought by moving the sliding sleeve of a wiping position in a Auspressstellung wherein the mop plate comprises two pivotally mounted mop plate wings, which are collapsible by pressing the ejection device into the Auspressstellung and pressed against each other.

PRIOR ART A wiper of the type mentioned in the introduction is known, for example, from EP 1 208 788 A1. The well-known wiper has a stem and a stick in its

Sliding sleeve mounted slidably on the longitudinal direction. Of the sliding sleeve are at least two pressing arms in the direction of one at the lower end of the stem

arranged wiper device, wherein the wiper device comprises a mop plate with two between a wiping position and a wringing pivotally mounted mop plate wings with a wiper pad. When moving the sliding sleeve in the direction of the wiper device out the Mop plate wings closed by the action of the press arms. The press arms slide over the mop plate wings and press them against each other to wring out the wiping pad therebetween. To the

Aligning wiper plate wings for insertion between the press frame, according to the document as guide means grooves on the inner surfaces of

Press arms provided, engage in the associated surveys on the squeegee blades.

A disadvantage of the known wiper is, on the one hand, that the pressing arms, in order to withstand the counterforce by the counter blades pressed against the wiping plates, must be mechanically very stable. This requires a higher cost of materials. On the other hand cause the above-described guide devices still additional manufacturing costs.

Presentation of the invention

The object of the invention is to develop a wiper of the known type so that it is easier and less expensive to produce and advantages in terms of

Handling has.

This object is achieved with a wiper with all features of claim 1. Advantageous embodiments of the invention are described in the subclaims.

The wiper according to the invention has a handle and a wiper device arranged at the lower end of the handle with a wiper plate and a wiper pad as well as a sliding sleeve slidably mounted in the longitudinal direction thereof with a squeezing device. The squeezing device can be brought from a wiping position into an expressing position by displacing the sliding sleeve. The mop plate has two pivotally mounted mop plate wings, which can be folded by moving the squeezing in the Auspressstellung and are pressed against each other. According to the invention is provided in the wiper described above that the squeezing as

Auspressgehäuse is formed, which side surfaces and one of

Wischeinrichtung facing opening through which the

folded mop plate wings are at least partially inserted into the Auspressgehäuse.

The cross-sectional area of the extrusion housing corresponds, according to a preferred embodiment of the invention, to the cross-sectional area of the folded wiper plate wings or, in order to increase the extrusion pressure, is slightly smaller than the latter. By this measure, the opening of the extrusion housing forms a Auspressspalt with opposing pressing surfaces through which upon insertion into the Auspressgehäuse pressure on the collapsed

Wiper plate wing is exercisable. The choice of suitable dimensions depending on the wiper pad used is within the reach of those skilled in the art.

The extrusion housing has the preferred one described above

Embodiment for a wiper the shape of a flattened body with two wide (aligned parallel to the surfaces of the folded squeegee blades) and two narrow side surfaces (aligned perpendicular to the surfaces of the folded squeegee blades) on.

The wiper according to the invention is simple and inexpensive to produce. Due to the fact that the squeeze housing surrounds the wiper in its squeezing position on all sides, an automatic alignment of the mop plate takes place during the insertion into the wiper plate

Extrusion housing, regardless of the angle in which the mop plate impinges on the opening. The use of guide elements, as provided in the above-described prior art, is therefore not required. Furthermore, the Auspressgehäuse can be made very visually appealing, for example, to loosen the overall picture with recesses are provided at appropriate locations. Such recesses have the other Advantage that they not only lead to a saving of material and thus also to a lower weight, but also create access to otherwise difficult to clean surfaces. In contrast to the known from the prior art press arms, which exert pressure only substantially on the mop plate blades substantially, in the case of the Auspressspalt limiting pressing surfaces of the pressure over a larger area, namely over a substantially strip-shaped area, the entire mop plate blade surface covered in the transverse direction, distributed. The force required for folding and pressing against each other

Mop plate wing is thereby reduced.

By the perpendicular to the pressing surfaces arranged side

Limiting surfaces of the press nip this is fixed in a simple manner in its width, without the need for a special material cost to increase the mechanical stability.

According to a preferred embodiment, at the pressing surfaces of

Auspressspalts press rollers provided. This reduces the friction during insertion of the wiper device in the Auspressspalt.

The press rollers are mounted according to a further preferred embodiment of the invention in oblong holes, wherein the distance between two oppositely arranged oblong holes tapers towards the top. An introduced into the Auspressspalt wiper device takes due to the frictional forces the pressure rollers with upwards, which is due to the conical orientation of the slots, the distance between the oppositely disposed press rollers and thus the width of the Auspressspalts increasingly reduced. This has the advantage that the extrusion pressure during insertion of the wiper device to the lower end of the plate wings is successively increased, whereby a better Auswringergebnis is achieved. Furthermore, means may be provided which cause a 90 ° rotation of the extrusion housing in each case when pushing back and forth between the expression and the wiping position. In the Auspressstellung the Auspressgehäuse is aligned with its largest longitudinal extent, namely the wider side surfaces whose width corresponds at least to the width of a plate wing, in the wiping direction. This can be annoying when wiping under cupboards or

like effect, when the stem of the wiper is to be guided at a very shallow angle to the surface of the soil to be cleaned. Perpendicular to the length expansion can be kept much lower, since the distance between the press rollers may not be greater than the thickness of the two

folded mop plate wings. This distance corresponds to the width of the narrower side surfaces. A 90 ° rotation of the extrusion housing during

Moving from the Auspressstellung in the wiping position causes the

Expressing housing is arranged in the wiping position with its greatest lengthwise extension perpendicular to the wiping direction, while only the narrower side surface extends in the wiping direction. How to effect such a rotation, for. B. by means of a thread-shaped groove in the stem and a corresponding

Guide element which engages in the groove, on the inner wall of the sliding sleeve, is known in the art.

To further reduce the expenditure of energy when squeezing the

Wiper device may be provided with a material with reduced sliding friction, the mop plate wing tops, for example, with a coating of PTFE or POM.

Furthermore, ramps for generating a pressure profile analogous to the above-described arrangement of the elongated holes, in which the press rollers are mounted, can be provided on the wiper plate wing back. Such ramps cause an increase in the pressure on the mop plate wings during insertion of the

Wiper device in the Auspressspalt. A particularly simple handling during cleaning with a wiper according to the invention is ensured if the wiper device is articulated on the end of the handle. Preferably, a universal joint is used here. The advantageous for wiping lateral pivoting movements are thus easily possible. In a particularly preferred embodiment, a center piece is provided for articulated connection between the wiper device and the handle, on which also the mop plate wings are pivotally mounted against each other.

Furthermore, the Auspressgehäuse can be designed at its lower end so that it serves as a base for the wiper.

There are no restrictions with regard to the wiping pads to be used. All wiping pads suitable for wipers with wiping plates with folding squeegee blades and / or commonly used may be used. Also mounting options for such wiping pads on the mop plate are well known in the art and will not be further explained at this point.

On the underside of the mop plate, a layer of a soft material, such as foam, in particular closed-cell foam, soft rubber or the like, be provided as a pad for the wiper pad, this layer is advantageously permanently attached to the mop plate. The wiper pad can be made much simpler in this embodiment and thus manufactured more cost-effectively. In the case of a wiper pad replacement, this layer, which does not usually wear quickly, is not retained and, as in the case of the wiper pad laminates known from the prior art, does not become lodged in such a position

Usually integrated, disposed of. This also results in a cost advantage. Likewise, this solution is advantageous in environmental terms. The wiper according to the invention with its various parts is preferably made of materials which are insensitive to corresponding

Liquids for cleaning a floor are, such as Kunsstoffmaterialien. Certain parts of the wiper, which must be mechanically stable, but can also be made of metal.

Embodiment:

On the basis of a practical comparative experiment with a commercial one

Standard wiper with one-sided (at the bottom of the sliding sleeve) fixed press arms and a wiper according to the invention according to the in Fig. 10

In the embodiment shown, the effectiveness of the squeezing process was tested in the wiper according to the invention. For this purpose, in the case of both wipers, in each case the amount of water discharged after wiping to a test soil surface following the squeezing process was determined. This amount of water should be as low as possible to the formation of stains or streaks or even damage to water-sensitive floors, such. B. parquet, to prevent by excessive water residues. In particular, with the last mentioned soils should

Do not exceed excess water 3 - 4 g / m ² .

In detail, the procedure was as follows: A water-saturated wiper pad was attached to the mop plates of the two wipers and by pressing the sliding sleeve with a conventional effort (corresponds, as determined by a series of tests, an extrusion pressure of about 80 N ) squeezed out. Subsequently, the wiping pads were weighed and re-attached to the mop plates. In a next step, a test floor area of 5 m ^{2 was} wiped with the wipers with the wiping pads, and the wiping pads were weighed again.

From the difference between the results of both weighing processes, the weight of the water delivered by the two wiping pads to the test soil surface during wiping was determined. In the case of standard wipers, this resulted in a water quantity of about 7.6 g / m ^2. In the wiper according to the invention, the amount discharged to the bottom was

Water quantity with only 3.3 g / m ² much lower. The wiper according to the invention Thus, it can be easily used to clean delicate floors such as parquet, wood or marble floors.

Subsequently, advantageous embodiments of the invention will be explained with reference to the accompanying figures in the drawing.

Brief description of the drawing

Show it:

1 is a perspective view of a preferred embodiment of a wiper according to the invention with partially represented stem;

FIG. 2 shows a front view of the sliding sleeve designed according to the invention with partially illustrated handle of the wiper from FIG. 1 the sliding sleeve from FIG. 2 in a lateral view (rotated by 90 ° with respect to the illustration in FIG. 2);

Fig. 4: a perspective view of another preferred

Embodiment of a wiper according to the invention with partially represented stem;

FIG. 5 shows a front view of the sliding sleeve designed according to the invention with a wiper device and a partially illustrated handle of the wiper from FIG. 4; FIG. Fig. 6: the sliding sleeve with wiper device and partially Pictured stem of FIG. 5 in a side view (rotated by 90 ° relative to the

Representation in Fig. 5); Fig. 7: a perspective view of a particularly preferred

8 shows a front view of the sliding sleeve designed according to the invention with a wiper device and a partially illustrated handle of the wiper from FIG. 7; Fig. 9: the sliding sleeve with wiper and partially Pictured stem of FIG. 8 in a side view (rotated by 90 ° relative to the

Sliding sleeve in Fig. 8);

10 a - d: in a perspective view using the example of a wiper

According to another preferred embodiment of the invention

Aligning the mop plate upon insertion into the squeeze housing;

11a-d: in a perspective view using the example of the wiper from FIG

Fig. 10, the rotation of the Auspressgehäuses by 90 ° when moving the sliding sleeve between the wiping position and the

Auspressstellung according to another preferred embodiment of the invention;

In the figures, like parts are designated by the same reference numerals. Moreover, reference is made to the explanations to the remaining figures with respect to the reference numerals used in the respective figures, wherein the

Reference numerals may be mentioned only in connection with only one figure.

One recognizes in figure. 1 a wiper 1 according to the invention with a handle 2 and arranged at the lower end of the handle 2 wiper device 3 with a mop plate 4 and arranged on the underside of the plate wiper pad 4.1 and a slidably mounted on the handle 2 in the longitudinal direction sliding sleeve 5 with a squeezing device, which is formed according to the invention as Auspressgehäuse 6 with side surfaces and one of the wiper device 3 facing opening 7. The Auspressgehäuse can be brought by moving the sliding sleeve 5 from a wiping position in a Auspressstellung.

The mop plate 4 has two pivotally mounted squeegee blades 4.2, 4.2, which by moving the squeeze housing 6 in the Auspressstellung from below at least partially into the squeeze housing 6 through the opening. 7

can be introduced. Upon entering the opening 7, the mop plate wings 4.2, 4.2, as will be explained in more detail below, in particular with reference to FIG. 10, aligned, folded and pressed against each other for pressing out the wiping pad therebetween. The Auspressgehäuse has according to the cross-sectional area of the

folded mop plate wings each two opposite narrow 6.1, 6.1 or wide side surfaces 6.2, 6.2. In the illustrated

Embodiment, the wider side surfaces 6.2, 6.2 formed as closed wide webs. From its lower end protrudes in each case a fork-shaped holder 6.3 for supporting each one Auspressrolle 8 obliquely to the outside.

The narrower side surfaces 6.1, 6.1 are open, so that all parts of the wiper 1, for example, are easily accessible for cleaning. Furthermore, the partially open structure not only achieves a material saving, the visual impression also wins.

The use of Auspressrollen 8 is not mandatory, as could the lower edges of the side walls 6.2 itself as pressing surfaces for the

Serve wiper plate wings. However, the effort required to move the sliding sleeve 5 is considerably reduced by the reduced friction when using Auspressrollen 8. Furthermore, the force is further reduced by the fact that the press rollers 8 over the entire width of the squeegee blades in a linear area pressure on the squeegee blades 4.2, 4.2 exercise, and not only in a nearly point-like area as in the case of the known press arms.

In the illustrated preferred embodiment, the wiper device has a center piece 4.3, on which the wiper plate wings 4.2, 4.2 are pivotably mounted. With this center piece 4.3, the lower end of the stem 2 is connected via a universal joint 9.

The opposing fork-shaped brackets 6.3 for the

Auspressrollen 8 are connected by transverse webs 6.4 and fixed in their distance from each other. The Auspressrollen 8 and the transverse webs 6.4 limit according to a preferred embodiment of the invention, a Auspresspalt, through which the wiper device 3 for pressing the wiping pad 4.1 with folded Wischplattenflügeln 4.2, 4.2 at least partially

is passed. Characterized in that the distance of the press rollers 8 through the

Transverse webs 6.4 is fixed, there may be no widening of the press nip and thus a reduction of the exerted by the squeezing on the mop plate wings 4.2, 4.2 pressure.

It can be seen in the figures further that on the wiper plate wings 4.2, 4.2 outwardly rising ramps 4.4 formed to produce a pressure profile during pressing. This ensures that the contact pressure to the lower end of the folded squeegee blades 4.2, 4.2 increases continuously.

According to a preferred embodiment of the invention has a

Wiper invention with an integrated Renigungsmittelbehälter with

Spraying and associated actuating means. In the figures, a spray nozzle 10 can be seen in the region of the open side surfaces 6.1. Figures 2 and 3 show for the wiper 1 shown in Fig. 1 in an enlarged sectional view of the sliding sleeve 5 with extrusion housing 6 in the Auspressstellung with folded and inserted into the extrusion housing 6 mop plate wings 4.2, 4.2.

Two further preferred embodiments of the invention are shown in FIGS. 4 to 6 and 7 to 9 analogously to the manner of depiction of the wiper in FIGS. 1 to 3. The wiper 1 shown in Figures 4 to 6 is characterized in that the Auspressgehäuse 6 has the shape of a downwardly open flattened bell. The housing is up to two opposing narrow, gap-shaped recesses in the narrow side surfaces 6.1, 6.1 of the

Squeeze housing substantially closed. Through the lower edges of the wall of the Auspressspalt is bounded. This embodiment has u. a. the advantage that the Auspressgehäuse can be used in the Auswringstellung as a stand for the wiper.

In the embodiment shown in Figures 7 to 9, the wider side surfaces 6.2 are completely open, while the narrower side surfaces have 6.1 narrow gap-shaped recesses.

FIGS. 10 a) - d) show a further preferred embodiment of a

Wiper 1 according to the invention. It can be seen that the squeeze housing 6 is shorter in relation to the squeezing housings in the embodiments described above. While in the wipers 1 described above, the length of the Auspressgehäuse 6 is selected in each case so that it encloses the above the wiper plate 4 angordnete nozzle 2 with 10, sees in the Fign. 10 a) - d) illustrated embodiment between the extrusion housing 6 and the

Sliding sleeve 5 a further sleeve section 5.1 before, in the field of

Spray nozzle 10 has an elongated slot 5.2. The height of the

Auspressgehäuses 6 corresponds only to about the length of one Wiper plate wing 4.2, so that the folded wiper plate wings 4.2, 4.2 are just completely inserted.

The narrow side surfaces 6.1, 6.1 are formed as webs, while the wide side surfaces 6.2, 6.2 are open. At the lower ends of the webs holders for supporting the press rollers 8 are provided on both sides. The press rollers 8 limit the side surfaces 6.2, 6.2 downwards. In the sequence of figures 10 a) - d) is shown how a at an angle to the formed as a press nip opening 7 wiping plate 4 with folded mop plate wings 4.2, 4.2 automatically aligns at the opening 7 without any guidance devices in the correct position and further Actuation of the sliding sleeve 5 immersed in this.

The Fign. 11 a) to d) show, in a schematic representation with reference to the wiper from FIG. 10 (the reference numerals have been omitted for clarity), the advantageous effect of a 90 ° rotation of the extrusion housing in the transition from the squeezing position to the wiping position. It can be seen that the Auspressgehäuse is aligned in the wiping position with its wider side surface perpendicular to the wiping direction, whereby the freedom of movement is substantially increased in the operation of the stem. For example, it is possible to guide the handle for wiping under furniture, such as cabinets or the like, at a shallow angle above the floor.

Claims

claims

1. wiper with a handle (2) and one at the lower end of the handle (2)

arranged wiper device (3) with a mop plate (4) and a wiper pad (4.1) and a handle (2) in the longitudinal direction slidably mounted sliding sleeve (5) with a squeezing device, which by moving the sliding sleeve (5) from a wiping position in a

Pressing position can be brought, wherein the mop plate (4) has two pivotally mounted mop plate flights! (4.2, 4.2), which are foldable by moving the squeezing in the Auspressstellung and pressed against each other, characterized in that the

Expressing device is designed as a Auspressgehäuse (6), which

Side surfaces (6.1, 6.1, 6.2, 6.2) and one of the wiper device (3)

facing opening (7) through which the folded mop plate wings (4.2, 4.2) in the Auspressgehäuse (6) are at least partially inserted.

2. Wiper according to claim 1, characterized in that the

Cross - sectional area of Auspressgehäuses (6) corresponds to the cross - sectional area of the mop plate wings (4.2, 4.2) folded in the Auspressstellung or is slightly smaller, so that the opening (7) of the

Press-out housing (6) forms a press nip with pressing surfaces.

3. Wiper according to claim 1 or 2, characterized in that press rollers (8) are provided in the press nip.

4. Wiper according to claim 3, characterized in that the press rollers (8) are mounted in slots.

5. Wiper according to one of claims 1 to 4, characterized in that the extrusion housing (6) has pairs of mutually oppositely disposed open side surfaces and / or recesses.

6. Wiper according to one of claims 1 to 5, characterized in that means are provided which effect a 90 ° rotation of the extrusion housing (6) in each case when moving back and forth between the Auspressteilung and the wiping position.

7. Wiper according to one of claims 1 to 6, characterized in that the mop plate wings (4.2, 4.2) are provided on their upper sides with a material with reduced friction.

8. Wiper according to one of claims 1 to 7, characterized in that on the wiper plate wings (4.2, 4.2) on its upper side ramps (4.4) for

Creation of a pressure profile to be provided

9. Wiper according to one of claims 1 to 8, characterized in that the wiper device (3) at the lower end of the stem (2) is articulated.

10. Wiper according to claim 12, characterized in that the joint (9) is a universal joint.

11. Wiper according to one of claims 1 to 10, characterized in that it has an integrated Renigungsmittelbehälter with spray device with a spray nozzle (10) and associated actuating means.

12. Wiper according to one of claims 1 to 11, characterized in that on the underside of the wiper plate (4) a layer of a soft material, such as foam, soft rubber or the like, is permanently attached.

13. Wiper according to claim 12, characterized in that the foam is a geschiossenzeiliger foam.