EP3318169B1 - Mop holder, release device and system - Google Patents

Description

The present invention relates to a release device and a system of mop holder and release device and relates in particular to the field of professional, commercial cleaning.

A professional cleaning specialist uses a variety of mop covers during their cleaning work. These are usually kept in stock in special containers on a cleaning system trolley carried during cleaning and are also stored on this in containers for holding used cleaning textiles. The cleaning system trolley is the central location for all work processes, so it is modularly equipped with various containers for cleaning liquids, with garbage and laundry bags, with cleaning devices, with moistening devices and / or flat presses or with connectable satellite trolleys.

A normal workflow requires the mop cover holder to be fitted as freshly as possible with a fresh mop cover from a storage container, moistening the mop cover with a certain amount of cleaning liquid, provided that the mop cover has not already been kept moistened in a wet storage container, wiping a floor, possibly several times Rinsing and squeezing out the mop cover for a next cleaning cycle and finally throwing off the dirty mop cover from the mop cover holder into a receptacle, which ends one operation and the next can follow in the same way.

A mop cover usually has two insertion pockets on its holding side, which serve to hold a wiper plate of a mop cover holder, which the mop cover is for use on Mop cover holder tensions and holds. The latter consist of a handle that is articulated to a wiper plate that has two lockable, hinged wings. The folded wings make it easier to thread in and out the pockets of the mop cover. The locking of the folding wings can usually be released by means of a foot switch as a locking device on the side of the wiper plate of the mop cover holder facing the handle, but can also be released by hand. Locking mechanisms are also known, which consist of a compressible locking wire which runs around a wing, engages in lateral gripping of the wing to be folded down and locks it in a force-fitting and form-fitting manner on the second wing, which carries the joint for the stem and on which the Wire is articulated. The locking of the folding sash must be released, for which purpose release aids are used. These are usually located above a collecting container for used mop covers, so that the used mop cover can slide off the wings folded down using the release aid and fall into the container. These release aids are therefore attached to these in a rather upper area of the cleaning system trolleys.

From the EP 1 849 393 A2 is known a mechanical release aid for a foot switch of a mop cover holder, which is located on the side of the wiper plate facing the handle. This consists of a multi-curved wire with fixed ends, so that there is a slot part with parallel wire sections and a vertically spaced, right and left extending, approximately rectangular actuating part. The handle of the mop cover holder is inserted into the slot part, whereby the wiper plate with the mop cover that is open and to be loosened is arranged below the rectangular actuating part, that is to say it is also arranged above the upward-facing foot switch. When the handle moves upwards, the actuating part presses the foot switch, releases it and thus releases the two Wiper plate wings free, which then swivel downwards and release the mop cover. This then falls into the collection container located under the release aid. Touches of the soiled mop cover by the hand of the cleaning specialist are largely avoided.

From the DE 20 2013 104 736 U1 is a release aid for one-sided use mop cloths is known, in which the unlocking of a wiper plate with locking wire on the side takes place mechanically without moving parts by means of two spaced, horizontally oriented stops, one of the stops having an approximately u-shaped section, the leg of which are directed away and the leg width is narrowed in the direction of the stop. Due to the narrowing in the direction of the stop leg width, the legs of the section quickly put on the circumferential wire of the locking mechanism, thus forming a positive guide, and press it together during further movement until it comes out of engagement with the Gripping the folding wing comes out and releases the folding wing.

From the WO 2015/049009 A1 a wiper plate is known in which a locking of the two wings is arranged in an area which lies in front of the joint. It is actuated by pivoting the handle, so that a nose arranged there acts on an angle element which points to a front edge of the wiper plate.

From the US 2 967 320 A. a locking device is known in which the operation is carried out by compressing two locking members which are movable towards one another against a spring force and which are arranged laterally next to a joint.

From the US 4,312,092 A. a mop holder with a bendable arm and two pivotable wings is known, with a locking mechanism arranged on a rear edge of the wings, which can be actuated by means of leg pressure and is designed as a bracket.

From the US 9 009 907 B2 a mop holder with two foldable wings on its longitudinal edge is known, the spring-guided locking mechanism being mounted in the folded state between the wings and on a front edge of the wiper plate.

From the WO 99/09876 A1 a system of mop holder, mop cover and handle is known, which has foldable mop wings, a mop between the wings, and a spring-operated actuation mechanism that is operated by kinking an actuating part on the handle.

From the CN 204 467 975 U. a foldable mop cover holder with articulated connection and two wings is known.

A disadvantage of these and other mechanical release aids is that a cleaning specialist must move the mop cover holder vertically upwards from the height of the release aid and thus easily bring the handle end of the mop cover holder to heights of 2.5 m to 3 m. At these heights there are hanging objects such as lamps, medical devices, but also ceiling hangers or the like, which can be damaged by the handle end. Due to the rather abrupt or jerky and quite powerful movement of the handle to release the lock, the objects mentioned can also be damaged in such a way that parts fall off and endanger the cleaning specialist himself. On the other hand, it is disadvantageous that they unlock by hand or by moving the handle and, if necessary, must pick up the contaminated mop cover by hand.

The object of the invention is therefore to avoid this disadvantage and to provide a corresponding release device and a corresponding mop cover holder, which are constructed in relation to one another.

The object with regard to the release device is achieved by a release device for detachably lockable wiper plates of a mop cover holder, comprising a frame with a passage area defining a first level and allowing insertion of a mop cover holder, a stop arranged on the frame for the wiper plates, the release device further has a fulcrum support area arranged on the frame and allowing a style to be placed on the mop cover holder, the stop and fulcrum support area lying in a second level that intersects the first level, characterized in that the stop protrudes into the pass-through area and lies within a range, which is swept by an opening area of an insertion opening of the passage area when it is mentally moved vertically up or down.

The release device according to the invention has a frame which can be designed as an open or closed frame, as a wire mesh frame, as a frame made of flat elements or in some other way. A stop and a fulcrum support area and a reach-through area are assigned to the frame. The latter serves to be able to insert a mop cover holder into the device in order to release its locked wings there. The penetration area can be designed as a circumferentially open or closed opening with a short or long axial extent, that is to say from a ring-shaped structure to a circumferentially open or closed channel-shaped, also winding channel-shaped, structure. This pass-through area defines a first level, which is parallel when the device is in use to the ground or angled to it. Two special functional areas are arranged on the frame, namely a stop and a fulcrum support area, both of which lie in a second plane that intersects the first. In addition to the stop known from the prior art, a fulcrum support area is now added according to the invention, which does not act like the stop on the locking mechanism of the wiper plate wings, but rather represents an area in or on which a handle can be placed in order to provide a turning and effective area realize. So that the above-mentioned negative linear movement of the stem can be omitted, both areas according to the invention lie in a second plane that intersects the first plane, so they are each arranged at a different distance from this first plane. As a result, a not purely vertical position of the handle is achieved during the loosening process, so that it executes a movement with a horizontal component, in particular can be pivoted about a fulcrum in the manner of a lever. According to the invention, the fulcrum can be a point-shaped, a line-shaped or a flat area, point is therefore not understood to be a mathematical point. According to the invention, the fulcrum area can be arranged outside the passage area, the same applies to the stop. According to the invention, the inclined position determined by the choice of the position of the stop and the fulcrum area relative to one another for an inserted mop cover holder ranges from approximately perpendicular to a floor, angled upwards, angled parallel to a floor up to 45 ° in the direction of the floor, so that in this case the wiper plate is located above the handle with its free end pointing towards the floor. For reasons of space and handling, an angle of the handle pointing upward between 5 ° and 45 ° is preferred Operating position. The locking is therefore no longer carried out according to the invention by a linear movement of the mop cover holder up against a stop but by pivoting about a pivot point against a stop. As a result, the movement space required for unlocking is significantly reduced, the described heights are not reached, and the dangers are avoided. Protruding an inserted mop cover holder is advantageously achieved by projecting the stop into the passage area. At the same time, this enables an advantage that a mop cover sliding off a detached wiper plate is already moved in the direction of a collecting container which is in the operating position below the device and can therefore safely get into it.

In an embodiment of the invention, it is provided that the frame is formed by an annular wire, which is preferably designed as a rounded rectangular shape, the frame forming and delimiting an insertion opening of the passage area. The wire is preferably made of stainless steel or a high-alloy, stainless steel, but it can also be made of plastic. The wire does not necessarily have a round cross-sectional area, this can be oval, ellipsoid or polygon. The rounded rectangular shape is preferred because its shape corresponds to that of the wiper plates and because of the curves, the device can be cleaned easily and completely. For this reason, rounded cross sections of the wire are also preferred. The frame preferably forms an insertion opening of the passage area and delimits it. When in use, a user inserts a mop holder through this insertion opening, which limits the insertion opening and thus guides its movements. The passage area according to the invention does not have to have such a circumferentially closed insertion opening, it could, as already described, also with be formed an open circumference, for example as a half oval, a quarter circle or a horizontally inclined V-shaped connection between the stop and the fulcrum area.

If the stop and the fulcrum support area in the operating position are arranged below the insertion opening, the guidance is even more secure, so that a possible falling of the mop cover past the collecting container is almost completely ruled out. According to the invention, it would also be possible, for example, to arrange the fulcrum support area above and the stop below the insertion opening. An arrangement in which both are arranged above the insertion opening would also be in accordance with the invention. In this case, a mop cover holder would be located completely above the device. In this case, the stop can be spaced vertically further than the fulcrum area from the insertion opening or vice versa. In both cases, their common level intersects the first level. Projecting in is generally understood to mean that the stop lies within a range which is covered by the opening area of the insertion opening when it is mentally moved vertically upwards or downwards.

In an embodiment of the invention it is provided that the stop has a stop edge running parallel to the first plane.

Such a parallel stop edge has the advantage that a user does not have to position his mop cover holder exactly. Even if the stop is positioned incorrectly, the stop edge is still so long that it can contact and release the locking mechanism of the inserted mop cover holder.

In an embodiment of the invention it is provided that the fulcrum support area is molded into the wire and the stop is molded onto the wire and / or in each case in one Center region of two opposite sides of the annular wire are arranged. Molded in here means that the fulcrum is formed by the wire itself or its course, that is to say it has a corresponding curvature downwards or upwards. Molded on means the invention that the stop is not directly bent from the wire of the frame itself but rather consists of a body which is preferably integrally connected to the wire. The materials of body and wire are identical, the body is preferably an equally dimensioned wire. Due to the arrangement of the stop and the fulcrum area in a central area of two opposite sides of the annular wire, the entire width of the insertion opening is available to a user.

In a further development of the invention it is provided that a first contact area and a second contact area are formed on the annular wire, the stop being arranged between the first and the second contact area. As a result, known mop cover holders, which are not specially matched to the release device, can advantageously be used with the release device according to the invention, since these often have locking devices arranged on one wing side, which can then be contacted in a releasable manner through the first or second contact area.

For this purpose, it is also provided that the first and second contact areas have a different vertical and horizontal distance from the fulcrum area than the stop. In particular, they are further spaced from the opening surface, since such a user has to use a deeper stop surface and does not have to lift the handle so high above the release device. The device has a second annular wire, which is arranged at a distance from one another in parallel in a plane and is connected to the first annular wire, the second annular wire having a different, in particular larger, diameter than the first. As a result, the device can be placed on the horizontally extending spacer or support bracket on the cleaning trolley and can thus be held on it without the functionality being impaired. According to the invention, a larger diameter is also understood to mean that the second annular wire includes a larger opening area than the first. Additional fastening means such as screws, interventions and engagement means, clips and the like are avoided. This reduces the design effort, reduces the surfaces and thus the susceptibility to contamination and increases the cleanability of the device. At the same time, an unintentional detachment from a cleaning trolley is avoided, a user must rather consciously lift the device according to the invention upwards from it.

In an embodiment of the invention it is provided that it has molded parts for the detachable fastening of a receptacle for used mop covers. In this way, incorrect dropping of used mop covers next to the collecting container is practically excluded, the receiving container can be exchanged without having to move the release device.

The object with regard to the system comprising at least one release device and at least one mop cover holder is achieved by a previously described release device and a mop cover holder, comprising a handle receptacle, a wiper plate, an articulated connection, arranged between the handle receptacle and the wiper plate, the wiper plate having two lockable, hinged wings, wherein a locking device acting on the wing is provided. The advantages of the release device were described at the beginning.

In a further development of the system it is provided that the wings are of equal dimensions to one another and the locking device is arranged between the two wings in the area of the articulated connection on a front edge of the wiper plate and is designed such that it can be fully actuated from this edge. By moving the only and complete actuation possibility of the locking device in the middle between the two wings seen in the wiping direction in front of the articulated connection, this is particularly easy to access and operate by the stop acting from this side of the release device according to the invention. At the same time, both wings can have the same dimensions, which is structurally simpler than the asymmetrical long and short wings known from the prior art. For this purpose, the locking device can have all conceivable actuating devices which can be fully actuated from this side by pressure. These include push buttons, buttons, grids, swivel levers and the like. According to the invention, a pivot axis is approximately parallel to the front edge of the wiper plate, so that the pivoting movement of an actuating lever is approximately arcuate between this edge and the handle. It is crucial that the actuation device is actuated completely from the front of the wiper plate, that is to say, in the case of use, from that side which is on the side of the handle facing away from the user. Although this constitutes a disadvantage of actuating the actuating lever by hand or foot, since a user would have to reach around the handle, this is precisely what the present invention is intended to prevent such disadvantageous manual actuation and to facilitate mechanical actuation.

In a development of the invention it is provided that the locking device acts on both wings and has a pivotable actuating lever, in particular an actuating lever pivotable away from the articulated connection. Such an operating lever has the advantage that in an emergency it can also be easily operated by a user by hand or by foot, which is more difficult with latching or push buttons. The pivoting direction away from the joint is particularly advantageous with regard to the release device according to the invention, in which the mop cover holder used executes a rotary movement around the pivot point area, so that the actuating lever bears against the stop, which then actuates it. The handle thus forms the power arm and the area of the mop cover holder between the point of contact at the pivot point area and the actuating lever forms the load arm. As already described, the lever force to be applied by a user can be preselected by a suitable choice of the horizontal distance from the stop and the fulcrum area, that is to say can be kept rather low, since the power arm will be considerably longer than the load arm. The orientation of the handle in the room, i.e. its inclination to the floor, is determined by a suitable choice of the vertical distance.

In a further development of the invention it is provided that the actuating lever acts on at least one form-fitting element, the at least one form-fitting element locking the wing-side counter-elements. This represents a structurally simple and effective power transmission, the form-fitting elements to be engaged or disengaged preferably having a flat configuration in order to make the contact area as large as possible. According to the invention, stop / stop, overlap / wrap around, engagement / engagement opening, Pass-through / pass-through opening, ball head / ball socket and other more into consideration.

It is preferred that the interlocking element and the wing-side counter element have mutually facing stop surfaces, which advantageously allows two pivoting movements and is structurally particularly simple.

In an embodiment of the invention it is provided that the counter element has support surfaces, the support surfaces being supported on a central part of the wiper plate and the central part carrying the articulated connection and the actuating lever. This structurally simple design of the wiper plate provides with the middle part a stable and rigid support platform which can carry the joint, the locking mechanism with the actuating lever and at the same time form an abutment for the wings which are supported on it in the locked state.

In a further development of the system it is provided that at least one projection is arranged on a wing, this projection pointing away from a plane defined by the wing at an angle unequal to 90 °. The wiper plate according to the invention is flat, so that when in use it exerts a high surface pressure on a stretched mop cover by lying flat there. The at least one projection per wing, which preferably does not protrude perpendicularly from the wiper plate but at an angle unequal to 90 °, leads in use to a pressing movement of the mop holder according to the invention in the direction of an opened mop cover in addition to the surface pressure through the surface of the wings and Middle part of the wiper plate also to an angled pressure on the protrusions, which is advantageous for moving the mop cover under the wiper plate during a wiping movement and thus prevents a relative change in position from the mop cover to the mop cover holder. According to the invention, a single, correspondingly angled projection is sufficient, in particular if it extends in an edge region along a front edge of the wing, as seen in the wiping direction. However, two such projections are preferred in order to be able to use the mop cover holder according to the invention in any wiping direction.

At least one further projection is provided with great advantage, which is approximately orthogonal to the first projection. This second projection is preferably formed by a section of the counter element. As a result, the previously described advantages of the at least one projection of a wing with regard to holding the mop cover in place are further improved by the fact that the mop cover is now held both in its longitudinal direction and transversely thereto under operating conditions. Slipping is practically impossible.

Fig. 1:

die Vorrichtung mit eingeführter Wischerplatte,

Fig. 2:

die Vorrichtung angeordnet an einem Reingungssystemwagen,

Fig. 3:

eine Ansicht des erfindungsgemäßen Moppbezughalters mit arretierten Flügeln,

Fig. 4:

diesen mit sich lösenden Flügeln und

Fig. 5:

diesen mit vollständig gelösten Flügeln.

The invention will now be explained with reference to the following figures, wherein

Fig. 1:

the device with inserted wiper plate,

Fig. 2:

the device arranged on a cleaning system carriage,

Fig. 3:

a view of the mop cover holder according to the invention with locked wings,

Fig. 4:

this with wings coming loose and

Fig. 5:

this with wings completely detached.

Fig. 1 shows a release device 1 according to the invention with inserted wiper plate 2, which is not shown in full Mop cover holder 3 belongs. The release device 1 has a frame 4 which delimits a passage area 5 to one side. The frame 4 is made here as a wire frame made of stainless steel wire, with all corners being rounded. The frame 4 defines a first level and includes an insertion opening 9 therein. Arranged on the frame 4 is a stop 6 for the wiper plate 2, which is shown here in engagement with this stop 6. The stop 6 protrudes into the penetration area 5, in other words it is located within the area that an insertion opening 9, which is thought to be shifted downward, would sweep over. The stop 6 has a stop edge 13 and is designed here as a wire bracket molded onto the frame 4. The molding preferably consists of a weld. This stop 6 with stop edge 13 is arranged in a central region 10 of a first side 11 of the frame 4. The insertion opening 9 has an approximately rectangular cross section and is therefore adapted to the rectangular shape of the wiper plate 2. On the opposite side 11, also in a central area 10, there is a pivot support area 7, which in this case is molded into the frame 4, namely as a downward-facing curvature. The principle according to the invention, according to which the release of the locking device 22, which will be explained in more detail later, shown here only half-covered by the handle receptacle 33, is clearly recognizable not by a linear movement of the mop cover holder, but rather by its pivoting or rotating movement about this pivot support area 7 This avoids a linear upward movement of the mop holder, as is known from the prior art. Rather, the handle of the mop cover holder 3 now projects obliquely upwards. In this embodiment, the stop 6 and the pivot support area 7 are arranged below the plane and thus also below the insertion opening 9. However, this is not mandatory required. In particular, the fulcrum support area 7 could also be designed as an upward-directed, approximately inversely W-shaped projection. The primary concern of the invention is that the stop 6 and the fulcrum support area 7 lie in a common second plane, which intersects the first plane and is therefore not formed parallel to it. It is initially irrelevant whether one or both of the abovementioned contact points to the mop cover holder are above or below or one above and the other below the first level. Fig. 1 further shows that a second annular wire 17 is provided, which has a larger insertion opening 9 'than that of the first annular wire. Both are oriented parallel to one another and connected to one another by means of a plurality of connecting sections 30. These make the transition from the smaller to the larger annular wire. Figure 1 also shows a first contact area 14 and a second contact area 15, which also protrude into the penetration area 5, but less strongly than the stop 6. These serve to solve differently designed, in particular the mop cover holder known from the prior art, with this device to be able to. As already described, the actuating lever 23 of the locking device 22 is already in engagement with the stop 6 or its stop edge 13. This stop edge 13 is designed significantly longer than the actuating lever 23 itself in order to always reliably unlock a user even when the mop cover holder is inserted incorrectly to enable the locking device 22.

Fig. 2 shows the release device 1 arranged on a cleaning system trolley 31 in use. It can be seen that below the release device 1 there is a receptacle 32 for falling mop covers. Instead of the solid container shown, a flexible container such as a can also be attached to the release device 1 Laundry bag attached. It can be seen that the connecting sections 30 rest on a spar of the cleaning system carriage 31, which is made possible by the conical shape of the device. Formations 16 serve on the one hand to fasten such a releasable receptacle and also to further support the device on the spar or to rest against it. The release device 1 according to the invention can only be removed by the user upwards from the cleaning system trolley 31, which prevents their unintentional removal or slipping. At the same time, no fastening means are required to fasten the release device 1 according to the invention to the system trolley 31.

Fig. 3 shows a view of a mop cover holder according to the invention with locked wings. Not shown is a complete mop cover holder 3, only its wiper plate 2 with two foldable wings 21 of the same dimensions, an articulated connection 19, an actuating lever 23 and a handle receptacle 33, in which a handle, not shown, is shown. It can be seen that the locking device 22 is arranged between the two wings 21 in front of the articulated connection 19, consequently on a front edge 24, and can be actuated there. The invention is particularly concerned with the operability of the locking device 22, which can in principle also be arranged at another location as long as it can only be actuated from this side of the mop cover holder at this location. As will be explained in more detail with respect to the other figures, the central part 29 has a structurally important position within the mop cover holder 3 according to the invention. Fig. 3 shows the two folding wings 21 in the locked position. These are each rotatably mounted on the central part 29 with two axes of rotation 34. The middle part 29 initially offers with the holder 35 a wiper plate-side holder for the articulated connection 19, the locking device 22 is also on this holder 35 arranged and rotatably connected to this. The same applies to the actuating lever 23. The wings 21 have on their side facing the central part 29 an approximately V-shaped bulge 36 in cross section.

Fig. 4 shows the state of the mop cover holder 3 according to the invention during the release process. It can be seen that the actuating lever 23 has been pivoted downward in the direction of the wings 21. The actuating lever 23, together with the articulated connection 19, is rotatably mounted on the holder 35 about an axis of rotation 37 and ends in two form-locking elements 25. These have been disengaged here by a rotary movement about the axis of rotation 37, with the in FIG Figure 5 counter elements 26 of the foldable wings 21, which can be seen better, are already pivoted a little out of the plane defined by the central part 29, the bulges 36 are raised. The support surface 28 of the bulge 36 can be seen on the left wing 21, also that of the right wing 21.

Fig. 5 shows the completely released wiper plate 2 with the wings 21 folded down. It can be seen that the bulges 36 each carry two support surfaces 28 at their free ends, which are supported on the middle plate 29 in the locked state. Also recognizable is a recess 38 in the bulge 36, which is provided by a counter element 26, namely a stop surface 27. The form-locking element 25 of the locking device 22 acts on this stop surface 27, as in particular Fig. 3 , right wing, can be seen. Fig. 5 also shows the projections 41 and 42, both of which end projecting below the plane 40 of the wing 21 and of which at least the first is preferably pointing away at an angle other than 90 °. The second projection 42 is approximately orthogonal to the first projection 41 and is formed by a section in the counter surface, the locking mechanism of the wing 21. This is the section of the wing shown on the right in the area of its counter element 26 which is located approximately in the middle of the narrow side of the wing 21 which points in the direction of the central part 29 and which points under the retaining web for the articulated connection 19 in the direction of the central opening of the central part 29. The projections 41 are shown here as beads, but according to the invention can also be simply free bends. In any case, projection 42 is such a bend.

The release device 1 according to the invention and the mop cover holder 3 according to the invention together form a highly efficient and reliable system, which is also particularly user-friendly.

LIST OF REFERENCE NUMBERS

1

release device

2

wiper plate

3

Moppbezughalter

4

frame

5

Through region

6

attack

7

Pivot support area

8th

wire

9

insertion

10

mid-range

11

Opposite sides

12

Wire hanger section

13

stop edge

14

First contact area

15

Second contact area

16

projections

17

second annular wire

18

diameter

19

articulation

20

21

folding wing

22

locking device

23

actuating lever

24

edge

25

Positive-locking element

26

counter-element

27

stop surface

28

supporting

29

midsection

30

connecting portion

31

Cleaning Trolley

32

receptacle

33

handle seat

34

axis of rotation

35

bracket

36

upheaval

37

axis of rotation

38

recess

39

Mopphalteabschnitt

40

level

41

head Start

42

head Start

Claims (16)

1. A releasing device (1) for temporarily lockable wiper plates (2) of a mop cover holder (3), having a frame (4) with a pass-through area (5) defining a first plane and enabling the insertion of a mop cover holder (3), and having a stop (6) arranged on the frame (4) for the wiper plates (2), wherein the releasing device furthermore has a pivot point support area (7) arranged on the frame (4) and enabling the support of a handle arranged on the mop cover holder (3), wherein the stop (6) and the pivot point support area (7) are located in a second plane which intersects the first plane, characterized in that the stop (6) protrudes into the pass-through area (5) and lies within an area which is covered by an opening area of an insert opening (9) of the pass-through area (5) as said opening area is imagined to be moved vertically in an upward or downward motion.
2. The releasing device according to Claim 1, characterized in that the frame (4) is formed by a ring-shaped wire (8), which preferably is designed in a rectangular shape with rounded corners, wherein the frame (4) forms and surrounds an insert opening (9) of the pass-through area (5).
3. The releasing device according to Claim 1 or 2, characterized in that the stop (6) and the pivot point support area (7) are arranged below the insert opening (9) when in their operational position.
4. The releasing device (1) according to Claim 1, 2 or 3, characterized in that the stop (6) has a stopping edge (13) extending parallel to the first plane.
5. The releasing device (1) according to any one of the preceding claims, characterized in that the pivot point support area (7) is formed in the wire (8) and the stop (6) is formed on the wire (8), and/or wherein they are arranged in a respective centre portion (10) of two opposite sides (11) of the ring-shaped wire (8).
6. The releasing device (1) according to any one of the preceding claims, characterized in that a first contact area (14) and a second contact area (15) are formed on the ring-shaped wire (8), wherein the stop (6) is arranged between the first contact area (14) and the second contact area (15).
7. The releasing device (1) according to Claim 6, characterized in that the first and second contact areas (14, 15) have a different vertical and horizontal spacing to the pivot point (7) than does the stop (6).
8. The releasing device (1) according to any one of the preceding claims, characterized in that it has a second ring-shaped wire (17) which is arranged in a plane located at a distance to the first ring-shaped wire (8) and is designed such that it is connected with the latter, wherein the second ring-shaped wire (17) has a different, in particular a greater, diameter (18) than does the first.
9. The releasing device (1) according to any one of the preceding claims, characterized in that it has mouldings (16) for temporarily connecting a receptacle for used mop covers.
10. A system for at least one releasing device (1) according to any one of Claims 1 to 9 and at least one mop cover holder, said mop cover holder (3) having a handle mount (33), a wiper plate (2), and a hinge joint (19) arranged between the handle mount (33) and the wiper plate (2), wherein the wiper plate (2) has two lockable, foldable wings (21), wherein a locking device (22) acting upon the wings (21) is provided, wherein the wings (21) are designed to be of identical dimensions and the locking device (22) is arranged between the two wings (21) in the area of a the hinge joint (19) at the front edge (24) of the wiper plate (2) and is designed such that it can be fully actuated from this edge (24).
11. The system according to Claim 10, characterized in that the locking device (22) acts upon both wings (21) and has a swivelling actuator lever (23), in particular an actuator lever (23) which can swivel away from the hinge joint (19).
12. The system according to Claim 11, characterized in that the actuator lever (23) acts upon at least one positive-locking element (25), wherein the at least one positive-locking element (25) locks counter elements (26) on the side where the wings are located.
13. The system according to Claim 12, characterized in that the positive-locking element (25) and the counter element (26) on the side where the wings are located have stop surfaces (27) that face each other.
14. The system according to Claim 12 or 13, characterized in that the counter element (26) has support surfaces (28), wherein the support surfaces (28) rest on a centre portion (29) of the wiper plate (2) and wherein the centre portion (29) supports the hinge joint (19) and the actuator lever (23).
15. The system according to any one of Claims 10 to 14, characterized in that at least one protrusion (41) is arranged on a wing (21), wherein this protrusion (41) points away from a plane (40) defined by the wing (21) at an angle other than 90°.
16. The system according to Claim 15, characterized in that another protrusion (42) is provided, which extends approximately orthogonally to the first protrusion (41).

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