EP1157653B1 - Holding device for fastening a mop to the end of a handle - Google Patents

Description

Technical area

The invention relates to a holder for attaching a mop at the end of a stem, wherein the holder has a base surface which has a greater length than width, wherein the holder has a boundary edge which is divided into at least two extending in the direction of the longitudinal axis of the holder edge regions is. Such mops are used for wet cleaning of floors.

State of the art

Such a holder is from the US Pat. No. 5,862,565 known. The holder has the shape of a parallelogram and is flat. This form should make it possible to clean hard-to-reach areas. Due to the flat shape of the holder and the choice of material, such as a plastic, the holder is elastically yielding to clean even concave surfaces can. As a textile material different materials can be used, for example cotton or polyester.

From the DE 19833553 C1 For example, there is known a mop for attachment to the end of a broomstick that includes a mount to which a number of relatively movable, absorbent strips of textile material are secured substantially transverse to the axis of the stem. The strips are anchored by means of a mushroom head in the holder while the mushroom head is smaller in its outer dimensions than the holder. The holder and the mushroom head are dome-shaped.

From the US 5, 199, 130 a mop is known, the holder is flared conical, wherein the inserted strips of mop are clamped over a provided with a central thread round plate. The plate is flat in contrast to the conical holder.

From the ES-U-1 043 526 a mop is known, the holder has a tapered corner, wherein the holder, starting from a round elliptical basic shape in the region of the corners over a significant part of its longitudinal extent a rectilinear region to the corner out. The holder itself may be dome-shaped. The strips are all here in substantially the same direction without angular offset from each other.

The invention has the object of developing a mop so that its handling and in particular the suitability for cleaning corners is improved.

Presentation of the invention

According to the invention, this is achieved by arranging a number of relatively movable, absorbent strips of textile material, preferably angularly offset substantially transversely to the longitudinal axis of the style, by clamping between a headboard and a panel, such that the footprint is in the area of attachment and the strip is such that the degree of limitation cooperates with the strips of the mop so that the edge regions are curved with a constant or an at least partially varying radius of curvature without changing the direction of the curvature, and the ratio of the length to the width is at least 1.2 and at most 4 , preferably more than 1.6 and that the radius of curvature of the edge regions is at least 0.61 times and at most 4.25 times the width.

Due to the formation of two curved edge regions, work is first achieved independently of the instantaneous position of the mop, since the mop always rests with the curved edge region. Due to the curvature of the mop can be rotated by a certain angle of rotation, wherein the mop rolls on the holder or the strip attached thereto. This rolling motion is made more difficult with increasing angle of rotation, since the focus of the mop is raised. In experiments it has been found that the ratio of the length to the width should be at least 1.2 and at most 4, preferably more than 1.6, in order to improve the handling of the mop.

A limitation of the rotation is provided according to an advantageous development corner, to overcome a significantly higher force is required. Due to the existing compared to a circular holder restoring action of the holder in a central position can be done with the holder a special simple and effortless working in S-movements.

Characterized in that the boundary edge at the ends bounding the length while avoiding acute-angled Corners may each have a flattening, a tipping over of the mop is more difficult from one edge region to the other.

Furthermore, outside of the length limiting ends, the bounding edge may have corners to obtain particular geometries and rolling motions.

Advantageously, the edge regions each consist of at least one circular section. Instead of circular sections but could also other curves occur when the rotational ability of the holder or the positional stability should be changed.

In the event that the two circular sections are mirror-symmetrical, the handling is independent of the use of the respective boundary edge.

If different suitabilities of the rotatability are to be provided, the curvature of the first edge region can be selected larger than the curvature of the second edge region.

Finally, it is advantageous if the angle enclosed by the tangent lines applied to the two lines delimiting the length at the boundary line is at most 90 degrees, since in this way also a cleaning of the corners usually encountered in buildings can take place.

To increase the radius of curvature, the head part can be pulled down at its corners, so that the overall result is a spatial curvature of the edge regions.

To further improve the rotatability of the mop, the connection of the holder with the handle can be done via a tilting joint movable in the longitudinal direction of the holder.

In this case, means for limiting the tilt angle of +/- 60 ° relative to the vertical to the longitudinal axis of the holder are advantageously provided on the joint. Very particularly advantageous is a restriction of the tilt angle to +/- 25 °, since the easy pressing in a sieve without significant deflection of the holder is made possible here.

According to a development, the base surface of the plate may be larger than that of the head part, whereby the plate protrudes circumferentially beyond the head part. This has the advantage that the effective wiping width is increased without the material content of the wiping material, in particular the strip, being increased. In addition, the power is transmitted to the strip of mop over a hard edge, so that in addition to the wiping to a certain extent cockroaches is possible.

To improve the rigidity, the head part can be hood-shaped, in particular concave. In this case, an edge may be formed at the transition of the dome-shaped over the edge region formed subsections.

Advantageously, the corners are rounded with a radius of between 0.05 times and 0.25 times the width of the holder, so that a rolling movement is made possible over the corners, although this is compared to the rolling movement on the outer edge increased force required.

For the case that the corners are rounded, a ratio of the length to the width of at most 2.4 and the ratio of the radius of curvature (R) to the width (B) of at most 3.38 can be used, in particular a ratio of Length to the width of about 1.8 has been found to be advantageous. It may be advantageous for the length of the holder to have a length between 0.99 and 0.6 times, preferably between 0.95 and 0.85, compared with a length in the region of the ends delimiting the length - Is, as in this area still a sufficient improvement in wiping performance and handling is achieved without actual corners are formed, which may possibly cause damage if not handled properly.

Brief description of the drawing

Fig. 1

ein Kopfteil eines erfindungsgemäßen Halters in perspektivischer Ansicht, die

Fig. 2

eine Draufsicht auf das Kopfteil gemäß Fig. 1, die

Fig. 3

eine Frontalansicht auf den Halter gemäß Fig. 1, die

Fig. 4

eine Seitenansicht des Kopfteils gemäß Fig.1, die

Fig. 5

ein weiteres Ausführungsbeispiel mit einem ein Kippgelenk aufweisenden Kopfteil, die

Fig. 6

ein weiteres Ausführungsbeispiel mit einer über das Kopfteil hervorstehenden Platte im Schnitt und als Konstruktionszeichnung, die

Fig. 7

den Halter gemäß Fig. 6 in Draufsicht, die

Fig. 8

den Halter gemäß Fig. 6 und 7 im Längsschnitt beziehungsweise in Längsansicht, die

Fig. 9

eine Platte für einen Halter gemäß Fig. 6 im Längsschnitt und die

Fig. 10

eine Draufsicht auf die Platte gemäß Fig. 9.

In the drawings, embodiments of the invention are shown. It shows the

Fig. 1

a head portion of a holder according to the invention in a perspective view, the

Fig. 2

a plan view of the head part of FIG. 1, the

Fig. 3

a frontal view of the holder of FIG. 1, the

Fig. 4

a side view of the head part according to Fig.1, the

Fig. 5

a further embodiment with a tilting joint having head part, the

Fig. 6

a further embodiment with a projecting over the headboard plate in section and as a construction drawing, the

Fig. 7

the holder of FIG. 6 in plan view, the

Fig. 8

the holder of FIG. 6 and 7 in longitudinal section and in longitudinal view, the

Fig. 9

a plate for a holder of FIG. 6 in longitudinal section and the

Fig. 10

a plan view of the plate of FIG. 9th

embodiments

In Fig. 1, a holder for attaching a mop is shown at the end of a stem. The holder comprises a head part 1, on which a cylindrical connecting piece 2 is integrally connected for latching with a counterpart, not shown, of a stem. The head part 1 consists of 2 curved half-shells 3, 4, the formation of an edge 5 abut each other and are also materially connected.

The head part 1 has an elongated shape, ie the length and the width are perceptibly different. In addition, corners 6, 7 are formed on the head part 1, wherein these corners 6, 7 lie in each case on the longitudinally formed end of the head part 1. Between Both corners 6, 7, the half-shell 3, 4 is formed so that it without changing the direction of curvature with a radius of curvature which is greater than half the width of the head part 1, is formed. The corners 6, 7 are even rounded.

From Fig. 2, the geometric relationships of the head part with respect to the base arise even more clearly. Thus, first of the head part 1 with the centrally located coupling piece 2 can be seen. Around this coupling piece 2 around the half shells 3 and 4 extend to form an edge 5 to an outer contour 8, 9 and the corners 6, 7. The arcuate contour 8, 9 extends from the corner 6 to the corner 7 with such Curvature that the longitudinal extent of the corner 6 to the corner 7 is perceptibly greater than the width b. The outer contours 8, 9 can be at least partially formed as a circular arc, the radius of curvature is significantly greater than the distance to the passing through the corners 6, 7 central axis of the head part 1.

In the present case, the ratio of length to width is about 1.8, with the proviso that with increasing ratio, the corners 6, 7 are getting sharper and an increasingly slimmer head part 1 is formed. As the ratio decreases, the footprint of the head approaches a circle. According to the invention, however, a base deviating from the circle should be present.

From FIGS. 3 and 4, the course of the curvature of the half shells 3, 4 is evident, as is the embodiment of FIG Edge 5 and the corners 6, 7 and the position of the outer contours 8, 9. Thanks to the dome-shaped upwards to the coupling piece 2 extending half shells 3, 4 can take place on the head part 1 a power transmission to the corners 6, 7, without a significant deformation of the holder occurs. The stiffness produced by this form is significantly improved over a simple plate.

In Fig. 5, a further embodiment of a head part 10 according to the invention is shown, in which the connection of the head part takes place with a style not shown via a tilting joint. For this purpose, the head part 10 has an eye 11 with a passage opening 12. The eye 11 is arranged in the longitudinal direction, that is to say parallel to the imaginary connection of the corners 6 and 7 on the upper side of the half shells 3, 4, and the opening 12 which defines the tilting axis 13 extends in the direction of the width of the head part 10.

It goes without saying that a tilting of the style about the tilting axis 13 is possible by a style with engaging in the opening 12, perpendicular to the style axis continuations. This means that the corners 6, 7 of the head part 10 can be moved to style or away from the style. Other degrees of freedom of movement of the head part 10 with respect to the style are not provided.

In order to keep the distance of the tilting axis 13 to the outer contour 8 as Auflagerand to the textile material as low as possible, the convex half shells 3.4 a concave depression 14, in which the eye 11 is housed. In addition, receiving openings 15, 16 are provided, which are arranged between the eye and the respective corner 6, 7 and serve to attach a plate to the head part 10. In Figs. 8 to 8, the complete holder is shown except for the strips of textile material. Fig. 6a shows the schematic arrangement of the head part 10 with a plate 20, wherein the connection via the receiving opening 15 and a protruding from the plate 20 pin 21 which projects through the head part 10 and is fixed in the receiving opening 15. In the gap 22 between the head part 10 and plate 20 are the strips of mop, which are thus clamped between the outer contour 9 as the lower edge of the head part 10 and the top of the plate 20. The head part 10 is tiltable about the tilt axis 13 with respect to the style, not shown.

In addition, it can be seen that the plate 20 goes beyond the head part 10 in its outer dimensions, that is to say that an edge-side projection is present. In Fig. 6b a concrete embodiment is shown with all edges occurring, in which case a style facing coupling piece 24 is shown in a tilted position. In addition, the stiffeners 25 which are arranged between the plate 20 around the dome-shaped arched head portion 10, at least partially.

In Fig. 7a, the structure of the holder by omitting the stripes is particularly clear, since the proportions of the head portion 10 and the plate 20 are clear. Thus, it can be clearly seen that the plate 20 projects beyond the outer boundary 8 of the head part 10 and along the entire outer contour 8, 9 has a projection 23. In this case, the plate 20 is formed so that the geometry described for the head portion shown in Figs. 1 to 4 is realized, that is, the length is greater than the width and at the elongated ends corners 26, 27 are formed which in turn be rounded can. In this case, in particular the angle ratios explained in FIG. 2 in the region of the corners 6, 7 or for the plate 20, the corners 26, 27 realized.

In the corner 6 straight lines G1, G2 are drawn, which go through the outer point of the corner 6 and the longitudinal axis of the head part 1. The straight lines G1, G2 include an angle α, which is in the range of 90 °, in the embodiment slightly above it. Already this structural design allows a significant improvement in the ability to clean corners, but it is particularly advantageous if the straight line G1, G2 are completely outside of the head part 1 with an angle of 90 °. Mathematically one speaks here of the envelopes.

Moreover, the arrangement of the eye 11 and the tilting axis 13 as well as the position of the receiving openings 15, 16 for the fastening means of the plate 20 results from FIG. 7 a.

FIG. 7b shows a construction drawing with inserted strips 28, 29 of a textile material, which correspond in width to the width of the head part 10 and have a smaller width than the plate 20. By arranging each other at an angle staggered strips 28, 29, however, the entire plate 20 is completely covered by the strips. Such an arrangement of the strips is already known from the prior art.

FIG. 8 a shows a longitudinal section through the holder with a plate 20 protruding beyond the head part 10, an eye 11 being present for forming a tilting joint. In the gap 22, the strips of mop can be clamped.

In Fig. 8b, a construction drawing is shown with a tilted coupling piece 24 which is attached to the eye 11 and can be connected to a style, not shown. The illustrated tilt angle beta is about 60 degrees from the vertical. For better handling, however, the tilt angle can be limited to +/- 25 degrees. In the gap 22 several layers of strips 25 are partially shown, wherein the plate 20 is connected via the connecting means 21 with the head part 10.

It is important to point out that when using a plate with larger dimensions than the head part, the actual shape of the head part to achieve the advantages of the invention is only partially decisive, as long as the strips are held between the plate and the head part, that the wiping forces on the plate on the strips are transferred. nevertheless is a similarity of the outer shape of the head portion to the shape of the plate makes sense to effect a corresponding attachment of the strips and a forced orientation of the strips.

To produce an increased holding force of the plate 20 on the head part, the plate 20 may be curved in the uninstalled state to the side of the strip of mop, so that in this state, the outer boundaries and the corners 26, 27 rest, the intermediate region, however, hollow is. In order to prevent slippage of the inserted between the headboard and plate 20 strips on the side facing the strip a plurality of projections 30 are formed with tips 31 which are pressed into the textile material of the strips during assembly of the holder.

These projections can according to FIG. 10 in the central region of the plate 20 and in the region of the corners 26, 27 are arranged.

From the geometry shown in Fig. 10 it can be seen that the outer edge of the plate has a curvature at each point, the radius of curvature outside the corners 26, 27 is significantly greater than half the width of the plate 20. In particular, the outer boundary may be formed by a circle section with a constant radius of curvature, but the outer contour may also be composed of several sections of different curvatures, for example by 4 circular sections extending longitudinally through "pointed" corners 26, 27 and in the direction of width blunt corners running transition areas 32 are formed. It is essential that the radius of curvature of these long sides compared to a circular base with the same width is substantially greater. This has the consequence that the holder with the headboard 1 or with the overhanging the headboard plate 20 and the standing beyond the strip of mop on the surface to be wiped a piece can be unwound until the rolling movement arrives at the corners and a further unwinding opposes a resistance.

By this rolling, which is possible without mechanical hinge alone due to the shape according to the invention, the handling of the mop in S-shaped wiping is significantly improved. The radius of curvature responsible for rolling can be increased by further pulling the corners 26, 27 and 6, 7 downwards, whereby the outer edge of the head part or the plate is curved three-dimensionally. In this case, a value of one tenth of the longitudinal extent should not be exceeded.

The rolling ability of the mop can be improved by providing a tilting joint, which allows a maximum tilt angle of +/- 60 degrees. Experiments have shown that in particular a tilt angle of +/- 25 degrees due to the limited angular position further improves the handling, especially when wringing into a sieve. In addition, it is through the use of the tilting joint possible to introduce the mop specifically in corners and to load towards the corner, so that a cleaning in the corners is possible.

FIGS. 11 and 12 show the basic geometric relationships, and the variables L, B, B / 2, R and Lc can be calculated by the formulas for a circular segment given a few values. Thus, for a plate with a length L = 100 and a width B = 54, a ratio L / B of 1.85 results, for the radius of curvature, for the case of a circular segment, a value of about 60 and a ratio to the width of about 1.1.

For a slab with a ratio L / B of 1.2, the radius of curvature R for the case of a circular section is approximately 0.61 in width.

For a plate with a ratio L / B of 4, the radius of curvature R for the case of a circular segment is approximately 4.25 to the width.

Finally, FIG. 12 shows a geometry with flats 34, 35 at the ends, whereby there is a reduced length Lc compared with that in FIG. 11 with the corners 26 and 27 and the length L.

The typical radius of curvature for the corners 26, 27 is in the range of 1 to 10 mm.

LIST OF REFERENCE NUMBERS

1

headboard

2

joint

3

half shell

4

half shell

5

edge

6

corner

7

corner

8th

Outer contours

9

Outer contours

10

Headboard with tilting joint

11

eye

12

Through opening

13

tilt axis

14

Concave depression

15

receiving opening

16

receiving opening

20

plate

21

pen

22

gap

24

coupling

25

strip

26

corner

27

corner

28

strip

29

strip

30

pen

31

top

32

Transition area

33

Transition area

34

flattening

35

flattening

Claims (18)

1. Holder for securing a mop to the end of a handle, the holder exhibiting a footprint having a length (L) greater than its width (B), the holder exhibiting a boundary edge that is subdivided into at least two boundary regions extending in the direction of the longitudinal axis of the holder, characterized in that a number of absorbent strips (28, 29) capable of movement relative to one another and made of a textile material is fixed preferably to one another with angular offset essentially transversely in relation to the longitudinal axis of the handle by clamping between a head part (1) and a plate (20), in that the footprint is present in the area of the attachment and the strips (28, 29), in that the boundary edge interacts with the strips of the mop, in that the boundary areas are curved without a change in the direction of the curvature with a radius of curvature (R) that remains constant or changes at least in sections, and in that the ratio of the length (L; Lc) to the width (B) is at least 1.2 and not more than 4, and is preferably more than 1.6, and in that the radius of curvature (R) of the boundary areas is at least 0.61 times and not more than 4.25 times the width (B).
2. Holder according to Claim 1, characterized in that the corners (6,7; 26,27) exhibits at least two corners (6, 7; 26, 27) at the ends delimiting the length (L).
3. Holder according to Claim 1, characterized in that the boundary edge at the ends delimiting the length in each case exhibits a flattened area (34, 35) in the absence of acute-angled corners.
4. Holder according to Claim 2 or 3, characterized in that the boundary edge exhibits corners (32, 33) outside the ends delimiting the length.
5. Holder according to one of Claims 1 to 4, characterized in that the edge areas in each case consist of a segment of a circle.
6. Holder for a mop according to one of Claims 1 to 5, characterized in that the holder is axially symmetrical in relation to a longitudinal axis of the holder in the area of attachment of the strips.
7. Holder according to one of Claims 1 to 6, characterized in that the radius of curvature of the first edge area is greater than the radius of curvature of the second edge area.
8. Holder according to one of Claims 1 to 7, characterized in that the angle (α) included by the tangents (G1, G2) applied to the boundary line at the two ends delimiting the length (L) amounts to not more than 90 degrees at the boundary line.
9. Holder according to one of Claims 1 to 8, characterized in that the head part (1) is drawn downwards at its corners (6, 7; 26, 27), so that the edge areas are curved in a three-dimensional manner.
10. Holder according to one of Claims 1 to 9, characterized in that the connection of the holder to the handle is effected via a pivot joint (11-13) capable of movement in the longitudinal direction of the holder.
11. Holder according to Claim 10, characterized in that means are provided for restricting the pivot angle of +/- 60 degrees in relation to the line perpendicular to the longitudinal axis of the holder.
12. Holder according to Claim 11, characterized in that the pivot angle is restricted to +/- 25 degrees.
13. Holder according to one of Claims 1 to 12, characterized in that the footprint of the plate (20) is greater than that of the head part (1).
14. Holder according to one of Claims 1 to 13, characterized in that the head part (1) and/or the plate (20) is configured in the form of a hood, in particular concave.
15. Holder according to Claim 14, characterized in that an edge (5) is formed at the transition between the sections (3, 4) that are raised in the form of a hood above the edge area.
16. Holder according to one of Claims 1 to 15, characterized in that the corners (6, 7; 26, 27) are rounded with a radius of between 0.05 times and 0.25 times the width of the holder.
17. Holder according to one of Claims 1 to 16, characterized in that the ratio of the length (L) to the width (B) does not exceed 2.4, and the ratio of the radius of curvature (R) to the width (B) does not exceed 3.38.
18. Holder according to one of Claims 1 and 3 and 4 to 17, characterized in that the length (Lc) of the holder, in relation to a length (L) exhibiting corners in the area of the ends delimiting the length, lies between 0.99 times and 0.6 times, and preferably between 0.95 times and 0.85 times.

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