Mop holder for a mop system, mop system, mop handle for a mop system and use of the mop system

Abstract

The invention relates to a mop holder (2) for a mop system (10) for cleaning clean rooms, said mop holder being designed to hold a mop cover (11), in particular in a releasable manner, wherein the mop holder (2) comprises or consists of an aramide fiber-reinforced and / or carbon fiber-reinforced plastic.

Description

[0001] The invention relates to a mop system comprising a mop holder and a mop handle. Furthermore, the invention includes a mop handle for a mop system. According to the invention, the mop system is intended for use in cleaning floors, walls, and / or ceilings, particularly in preferably sterile cleanrooms.

[0002] Mop systems are used to clean floors or other surfaces in cleanrooms. Working in cleanrooms entails special hygiene requirements. This applies to the equipment and procedures used in cleanrooms. It is of primary importance to prevent the introduction of contaminants such as particles and / or germs into the cleanroom, as well as any possible cross-contamination of clean objects by contaminants from other objects.

[0003] Mop systems and other items brought into cleanrooms generally must be decontaminated and disinfectable, or even sterilizable, for example, by autoclaving at 121°C for up to 25 minutes or at 134°C for up to 6 minutes. Likewise, the mop systems must be resistant to cleaning agents, disinfectants, and / or solvents. Disinfectants include, for example, diamines, isopropanol, ethanol, active chlorine, and hydrogen peroxide. Cleaning agents include, for example, alkaline cleaning agents such as sodium hydroxide and / or acidic cleaning agents. One solvent, for example, is acetone. For cleaning rooms in semiconductor manufacturing, metal components in the equipment must also be excluded.

[0004] When cleaning cleanrooms, it is particularly important to make all necessary work steps as reproducible as possible. The correct use of the mop system by cleaning staff is crucial.

[0005] With conventional cleaning systems using mops, cleaning staff often have to exert considerable effort for various work steps. This is especially true when cleaning walls and / or ceilings, where the weight of the mop system places a strain on the cleaning staff, and even more so for shorter staff. Experience has shown that excessive physical strain on cleaning staff quickly leads to fatigue and demotivation.

[0006] Furthermore, it has been shown that the number of individual manual work steps should be kept as low as possible when working in cleanrooms. A few individual work steps are advantageous in cleanrooms, as every movement releases particles from both the cleaning personnel and the equipment into the cleanroom. Such particle release should be minimized wherever possible.

[0007] A cleaning device for clean rooms in the form of a mop system comprising a shaft section, a closure element, and a holder for a mop cover is described, for example, in DE 20 2013 011 946 U1. A mop system and a mop handle are already disclosed in US-A-2017258287.

[0008] An object of the present invention is to overcome the disadvantages of the prior art and in particular to provide a device, a kit of parts and a method of use which is particularly easy to use, in particular with as few individual handling movements as possible and / or with the application of as little force as possible by cleaning personnel.

[0009] This problem is solved by the subject matter of independent claim 1.

[0010] The invention relates to a mop system for cleaning clean rooms, comprising a mop holder, in particular a flat mop holder, for a mop system for cleaning clean rooms, wherein the mop holder is configured and designed to hold a mop cover, preferably a flat mop cover, in particular detachably. According to the invention, the mop holder comprises aramid fiber-reinforced and / or carbon fiber-reinforced plastic or consists of aramid fiber-reinforced and / or carbon fiber-reinforced plastic. According to the invention, the mop holder further comprises a mop handle comprising at least one tubular mop handle section consisting of or comprising an aramid fiber-reinforced and / or carbon fiber-reinforced plastic. The mop holder is generally configured and designed to be attachable or to be attached to a (lower) end of a mop handle.When cleaning a wall or ceiling of a cleanroom, the weight of the mop holder therefore creates a leverage effect that the cleaning staff must compensate for. The mop holder expediently weighs no more than 450 g, in particular no more than 300 g, preferably no more than 200 g or no more than 150 g. In particular, the mop holder comprises at least 50%, at least 60%, or at least 80% or at least 95% fiber-reinforced plastic (AFK and / or CFK), preferably at least 90% fiber-reinforced plastic (AFK and / or CFK), particularly preferably at least 95% fiber-reinforced plastic. The proportion of aramid- and / or carbon-fiber-reinforced plastic is determined in particular with regard to the surface of the mop holder, preferably the surface of the side of the mop holder facing the floor.It should be understood that the proportion of fiber-reinforced plastic in the mop holder does not include a connecting piece, particularly realized by a joint, for connecting the mop holder and mop handle to one another. By constructing the mop holder with a weight-saving aramid and / or carbon fiber-reinforced plastic material, a particularly effective workload reduction for cleaning personnel can be achieved. The mop holder can comprise several mop holder parts, in particular mop holding wings, that are movable relative to one another. The mop holding wings can be folded transversely along a pivot axis in the mop width direction or longitudinally along a pivot axis in the mop length direction. In particular, the carbon fiber-reinforced plastic comprises carbon nanotubes.Conventional mop holders made of stainless steel or aluminum, for example, can experience plastic deformation under heavy use, such as the weight of the cleaning staff while using the mop on a concave surface, which subsequently impairs the cleaning effect. Mop holders made of aramid and / or carbon fiber-reinforced plastic, on the other hand, exhibit exceptional dimensional stability.

[0011] According to one embodiment, the mop holder has a rectangular basic shape. In particular, the mop holder has a length in the range of 35 to 55 cm, in particular in the range of 40 to 50 cm, preferably 40 to 50 cm, and a width in the range of 8 or 10 to 20 cm, in particular in the range of 12 to 17 cm. The mop holder is particularly suitable for use in combination with the mop handle described below.

[0012] According to one embodiment, the mop holder can be realized as a flat mop holder with a first mop holding wing and a second mop holding wing. Preferably, the mop holding wings each have an upper wing and a lower wing. The mop holding wings have two opposing transverse edges and two opposing longitudinal edges, with one outer longitudinal edge each pointing away from the other mop holding wing. The mop holding wings can in particular have inner longitudinal edges that point towards one another. The longitudinal edges of a mop holding wing are longer than its transverse edges. Preferably, the longitudinal extent of the longitudinal edges of the mop holder is greater than the transverse width of the mop holder. The transverse width of the mop holder can be defined by the cumulative transverse width of the transverse edge of the first mop holding wing and the transverse edge of the second mop holding wing.The mop holder and / or the mop holding wings preferably have a substantially rectangular basic shape. The longitudinal extent of the flat mop holder can correspond to the respective longitudinal extent of the first and / or the second mop holding wing. The longitudinal extent of the mop holder can be in the range of 40 to 55 cm, in particular in the range of 45 to 50 cm, preferably approximately 48 cm. Additionally or alternatively, the width of the mop holder can be in the range of 10 to 20 cm, in particular in the range of 12 to 17 cm, preferably approximately 14.5 cm. At least one of the two mop holding wings is movable relative to the other mop holding wing. Preferably, the second mop holding wing can be pivotable relative to the first mop holding wing and a connecting piece attached or attachable to the first mop holding wing.It may be preferred that one of the mop holding wings, in particular the second mop holding wing, is pivotable relative to the other mop holding wing about a longitudinal axis of the flat mop holder.

[0013] Alternatively or additionally, in an embodiment of the mop holder as a flat mop holder, at least one of the holding wings, in particular both of the holding wings, can have a longitudinal rib, in particular one that is convexly curved towards the upper side. In particular, the at least one longitudinal rib extends from a flat section to the upper side. Flat sections of the holding wing can be provided on both sides in the transverse direction relative to the at least one longitudinal rib. The longitudinal rib can extend longitudinally along the entire longitudinal extent of the respective mop holding wing. By providing one or more ribs, increased rigidity of the flat mop holder can be achieved, and thus more precise positioning of the flat mop cover for improved cleaning action.

[0014] According to one embodiment of the mop system according to the invention, it further comprises a connecting part, in particular a joint connection. The mop system comprises or consists of aramid- and / or carbon-fiber-reinforced plastic. In particular, the carbon-fiber-reinforced plastic comprises carbon nanotubes. The mop system can comprise the mop handle described below, the mop holder described above, and / or the connecting part described below. The mop system generally has a total length or telescopic length, which is composed of the length of the mop holder, the connecting part, the mop handle or its mop handle sections, and optionally an end piece, such as a handle.

[0015] The mop system can be telescopic. The mop system comprises at least one retracted configuration in which the mop system is retracted to a minimum mop handle telescopic length. The minimum telescopic length is in particular in the range of 100 cm to 190 cm, preferably in the range of 120 cm to 160 cm, particularly preferably in the range of 130 to 140 cm. The mop system comprises at least one extended configuration in which the mop system is extended to a maximum telescopic length. The maximum telescopic length is in particular in the range of 140 cm to 250 cm, preferably in the range of 180 cm to 220 cm, particularly preferably in the range of 205 cm to 215 cm.

[0016] According to a preferred embodiment, the mop system is heat-resistant up to 140°C. Alternatively or additionally, the mop system is resistant to cleaning agents and / or disinfectants and / or solvents. The mop system can be designed and configured to be resistant to active substances approved and / or commonly used in cleanrooms for surface disinfection. In particular, cleaning agents and / or disinfectants and / or solvents can be selected from a group consisting of surfactants, acids, bases, bleaching agents, enzymes, alcoholic solutions, and mixtures thereof.

[0017] According to the invention, the use of the mop system described above is intended for cleaning floors, walls and / or ceilings, in particular in preferably sterile clean rooms.

[0018] According to another aspect of the invention, which can be combined with one or more of the preceding aspects, a mop handle for a mop system, in particular for cleaning clean rooms, is provided, consisting of or comprising aramid- and / or carbon-fiber-reinforced plastic. It may be preferred for the mop handle to comprise aramid- and / or carbon-fiber-reinforced plastic. A mop handle may be formed, at least in sections, with or from aramid- and / or carbon-fiber-reinforced plastic. It is conceivable for a mop handle to have one or more aramid- and / or carbon-fiber-reinforced plastic layers. Alternatively, it may be preferred for the mop handle to be made of aramid- and / or carbon-fiber-reinforced plastic. The mop handle has a length of at least 100 cm, preferably in the range of 120 to 240 cm, in particular in the range of 160 to 220 cm, preferably in the range of 180 to 200 cm.The mop handle expediently has a weight of at most 800 g, in particular at most 600 g, preferably at most 500 g or at most 400 g. In particular, the mop handle comprises at least 50%, at least 60%, or at least 80% aramid- and / or carbon-fiber-reinforced plastic, preferably at least 90%, particularly preferably at least 95% aramid- and / or carbon-fiber-reinforced plastic, in particular with respect to the surface area of ​​the mop handle or the length of the mop handle in its longitudinal axis direction. The mop handle, which can also be referred to as the shaft, accounts for a large part of the weight of a conventional mop system. By using an aramid-fiber-reinforced and / or carbon-fiber-reinforced plastic instead of the usual stainless steel or thick-walled plastic versions, a significant weight reduction can be achieved.The use of a mop handle made of or comprising aramid fiber-reinforced and / or carbon fiber-reinforced plastic allows the mop system to be used, particularly for cleaning walls and / or ceilings, for longer periods with less physical strain. Surprisingly, it has been shown that aramid fiber-reinforced and / or carbon fiber-reinforced plastic exhibits material properties that allow it to be used for cleaning cleanrooms.

[0019] According to one embodiment, the mop holder or mop system comprises a plastic material, in particular selected from a group consisting of thermosets, preferably epoxy resins, thermoplastics, and mixtures thereof. Thermoplastics can preferably be selected from a group consisting of polyamides (PA), polyolefins, preferably polypropylene (PP), polyetherimides (PEI), polysulfones (PSU), polyetheretherketone (PEEK), polyacetals, preferably polyoxymethylene (POM), polyvinylidene fluoride (PVDF), polyphenylene sulfone (PPSU), polyethersulfone (PES), polyamideimide (PAI), polybenzimidazole (PBI), and mixtures thereof. The mop system can comprise various plastic materials. For example, a fiber-reinforced, in particular aramid fiber-reinforced and / or carbon fiber-reinforced, mop holder or mop handle section can comprise a first plastic material, in particular as a matrix material.The mop system can comprise a different, second, third and / or further plastic material. In particular, a handle of the mop system can comprise or consist of a second plastic material. In particular, a connecting piece of the mop system can comprise or consist of a third plastic material. In particular, at least one locking device of the mop system can comprise or consist of a fourth plastic material. The plastic material of the connecting piece, the at least one locking device and / or the handle is in particular a thermoplastic, preferably selected from a group consisting of polyamides, polyolefins, preferably polypropylene, polyetherimides, polysulfones, polyetheretherketone, polyacetals, preferably polyoxymethylene, polyvinylidene fluoride, polyphenylene sulfone, polyethersulfone, polyamideimide, polybenzimidazole and mixtures thereof.The plastic material of the connecting piece, the at least one locking device and / or the handle can particularly preferably be POM, POM-GF (glass fiber reinforced POM), PA-GF (glass fiber reinforced PA), PP mineral reinforced (especially talc reinforced), PEI, PSU or PEEK.

[0020] According to the invention, the mop handle comprises at least one tubular mop handle section. A mop handle section can also be referred to as a shaft section. The mop handle section expediently has a weight of at most 400 g, in particular at most 300 g, preferably at most 200 g or at most 150 g. The tubular mop handle section comprises or consists of aramid fiber-reinforced and / or carbon fiber-reinforced plastic. A mop handle section can be formed, at least in sections, with or from aramid fiber-reinforced and / or carbon fiber-reinforced plastic. It is conceivable for a mop handle section to have one or more aramid fiber-reinforced and / or carbon fiber-reinforced plastic layers. In particular, the tubular mop handle section has a wall thickness in the range of 0.01 mm to 3 mm.The tubular mop handle section preferably has a wall thickness of at most 1 mm, in particular at most 0.5 mm, preferably less than 0.3 mm. The wall thickness of the tubular mop handle section can be at least 0.05 mm or at least 0.1 mm.

[0021] In a further development, the mop handle section can have a rounded, in particular circular, oval or polygonal, cross-sectional shape. A rounded polygonal cross-sectional shape can, for example, be hexagonal or octagonal with rounded corners. The mop handle section can have an oval cross-section at least in sections. The rounded cross-sectional shape makes the mop handle decontaminating and ergonomic. It is clear that a mop handle or mop handle section can have a constant cross-sectional shape. Alternatively, it is conceivable that a mop handle or mop handle section can have different longitudinal sections with different cross-sectional shapes. In the case of a mop handle or mop handle section with longitudinal sections of different cross-sectional shapes, it can be preferred for the different cross-sectional shapes to merge into one another continuously and / or in a rounded manner.

[0022] According to a preferred embodiment, the mop handle comprises a plurality of mop handle sections that are telescopically movable relative to one another. In particular, the mop handle can have exactly two mop handle sections that are telescopically movable relative to one another. Alternatively, the mop handle can have three, four, or more mop handle sections that are telescopically movable relative to one another. The mop handle comprises at least one retracted configuration in which the mop handle is retracted to a minimum mop handle telescopic length. The minimum mop handle telescopic length is in particular in the range 120 cm ± 25 cm, preferably in the range 121 ± 10 cm. The mop handle comprises at least one extended configuration in which the mop handle is extended to a maximum mop handle telescopic length. The maximum telescopic mop handle length is in the range of 180 cm ± 25 cm, preferably in the range of 181 ± 10 cm. The extension distance, iethe cumulative range of length adjustability of the mop handle is in particular in the range 50 cm to 100 cm, preferably in the range 60 cm to 80 cm, particularly preferably 70 cm.

[0023] According to a preferred embodiment of a mop handle with exactly two or more mop handle sections, the mop handle comprises at least one inner mop handle section and at least one outer mop handle section, which at least partially accommodates the at least one inner mop handle section. It should be understood that the terms "inner" and "outer" refer to the relationship between two immediately adjacent mop handle sections. In particular, a subset of the inner mop handle section is accommodated inside a corresponding subset of the outer mop handle section. For example, the mop handle can be composed of two mop handle sections: a first, inner, preferably lower, mop handle section and a second, outer, preferably upper, mop handle section.In a combination of this embodiment with the above-described embodiment with at least one locking device, the at least one locking device is preferably arranged, preferably attached, to the (second) outer mop handle section. It should be understood that the term "bottom" is used synonymously with the mop handle near the mop holder, and the term "top" is used synonymously with the mop handle farthest from the mop holder. Preferably, an outer mop handle section has a length in the range of 950 cm ± 25 cm, in particular in the range of 950 cm ± 10 cm. Preferably, the outer mop handle section is tubular. Preferably, an inner mop handle section has a length in the range of 100 cm ± 25 cm, in particular in the range of 101 cm ± 10 cm. Preferably, the inner mop handle section is tubular. An inner, tubular mop handle section can accommodate structural reinforcement.The structural reinforcement can be formed, for example, by a foam, such as a metal foam or a polymer foam, wherein in particular the foam predominantly, ie at least 50%, in particular at least 75%, preferably at least 90%, or completely fills the tubular inner mop handle section.

[0024] It may be preferred that the at least one locking device is arranged, preferably fastened, on an operationally upper mop handle section and / or on an outer mop handle section. Operationally, the one locking device can be arranged on the mop handle in such a way that, when the mop holder with mop cover is resting on a floor surface, it is arranged at a distance from the floor surface in a range of 10 cm to 120 cm, preferably in a range of 20 cm to 100 cm. In the retracted configuration, the distance of the one in particular first locking device from the floor surface can preferably be in the range 25 cm ± 10 cm. In the extended configuration, the distance of the one in particular first locking device from the floor surface can preferably be in the range 95 cm ± 10 cm.

[0025] In a further development of a mop handle, the at least one locking device comprises at least one support section fastened longitudinally to the outer mop handle section. In particular, at least one prestressing means, such as the compression spring, is supported on the support section, wherein the prestressing means urges the holding member against the inner mop handle section. The prestressing means can, for example, be at least one compression spring aligned in the longitudinal direction of the mop handle, in particular coaxially to the longitudinal direction of the mop handle. The compression spring can radially surround the inner mop handle section. The prestressing means, in particular the compression spring, can be arranged longitudinally adjacent to the outer mop handle section.Alternatively or additionally, at least one counter-stop is attached to the support section, which counter-stop has, at least in sections, an inclined, in particular conical, wedge surface on which the holding member is guided in the radial direction and / or longitudinal direction. The counter-stop can be annular or cylindrical sleeve-shaped. The counter-stop can have one or more wedge surfaces for one or more holding members. The wedge surface of the counter-stop preferably has a longitudinal extension and a radial taper along the longitudinal extension. Preferably, the pretensioning means urges the holding member longitudinally against the wedge surface. The counter-stop can be designed and configured to form an abutment radially opposite the inner mop handle section with respect to the holding member.For example, the retaining member can be ring-shaped, in particular semi-ring-shaped, and surround the inner mop handle section on the outside. The retaining member itself can be surrounded on the outside by the counter-stop.

[0026] The wedge surface of the counter-stop can have a tapered contour, so that when sliding along the wedge surface in the longitudinal direction, the holding member is urged radially toward the inner mop handle section. A sliding movement of the holding member relative to the wedge surface can be initiated by the pretensioning means, in particular the compression spring.

[0027] According to another embodiment, which can be combined with the previous one, the at least one locking device comprises at least one actuating part that is movable relative to the outer mop handle section and / or relative to the inner mop handle section. The actuating part is preferably rotationally movable with respect to the mop handle, in particular in the circumferential direction of the mop handle. Alternatively, the at least one actuating part is translationally movable. The actuating part can be implemented, for example, as an actuating ring or as an actuating sleeve. The actuating part is designed and configured to displace the holding member between the holding position and the release position. It may be preferred that the actuating part can assume a release position and a stop position. For example, the actuating part can be rotated in the circumferential direction with respect to the mop handle from the release position to the stop position and vice versa.

[0028] Preferably, the actuating part is designed and configured to displace the holding member into the release position (release position) after rotation in a first direction of rotation in the circumferential direction relative to the mop handle. In particular, the actuating part is designed and configured to allow the holding member to assume the holding position (stop position) after rotation in a second direction of rotation opposite to the first direction of rotation in the circumferential direction relative to the mop handle. It is preferred that the actuating part is movable relative to the mop handle in a direction different from the telescopic or longitudinal direction, preferably the radial direction and / or the circumferential direction. Preferably, the actuating part is stationary in the longitudinal direction relative to the outer mop handle section.By distinguishing the direction of the actuation of the control element from the direction of the mop handle's telescopic extension, incorrect operation of the mop handle can be prevented. Incorrect operation could result in unintentional changes in length and / or particle abrasion.

[0029] Alternatively, a first and / or second actuating part, in particular, is designed and configured to move the holding member into the release position (release position) after a translational movement in a first thrust direction relative to the mop handle. In particular, the first and / or second actuating part, in particular, is designed and configured to allow the holding member to assume the holding position (stop position) after a translational movement opposite to the first translational movement relative to the mop handle.

[0030] In a particular embodiment, it can be provided that a first actuating part is preferably connected directly to the holding member, and that a second actuating part is connected to the first actuating part. Preferably, the second actuating part is designed and configured to cause the first actuating part to move at least into the stop position and / or the release position. The first actuating part and the second actuating part are preferably coupled to one another by means of a force transmission means, in particular one that is adjustable in length, such as a cable pull. Preferably, the first actuating part is attached to the lower end and the second actuating part to the upper end of the outer mop handle.

[0031] In a preferred embodiment, the locking device comprises at least one sliding wedge, which is held stationary in the circumferential direction relative to the outer mop handle and movable in the radial direction. The sliding wedge can be held, for example, in a recess of the counter-stop or a multifunctional sleeve. The sliding wedge is guided on a particularly eccentric inner contour of the actuating part in such a way that, in a first relative position of the actuating part to the sliding wedge (release position), the sliding wedge forces the holding member into the release position, in particular against the pretensioning means. The sliding wedge is further guided on the particularly eccentric inner contour of the actuating part in such a way that, in a second relative position of the actuating part to the sliding wedge (stop position), the pretensioning means brings the holding member into the holding position. In particular, the pretensioning means presses the sliding wedge against the inner contour.

[0032] According to a preferred development of the mop system with holding member(s), the at least one holding member has at least one gripping layer arranged on an inner surface of the holding member facing the at least one mop handle section. The gripping layer can expediently be designed for an adhesive pairing with the, in particular inner, mop handle section. In particular, the gripping layer and the, in particular inner, mop handle section cooperating with the gripping layer are coordinated with one another in such a way that the static friction of the adhesive pairing is significantly, in particular at least 3 times, preferably at least 5 times or at least 10 times, greater than the sliding friction. In particular, the gripping layer comprises or consists of an elastomer material, in particular a thermoplastic elastomer, preferably a TPU (thermoplastic elastomer) and / or TPV (thermoplastic vulcanizate). The gripping layer is accordingly preferably elastic or rubber-elastic.The gripping layer preferably comprises or consists of a thermoplastic elastomer (TPE) material. Suitable TPE materials can be selected from the group consisting of olefin-based thermoplastic elastomers (TPO), thermoplastic polyamide elastomers (TPA), thermoplastic copolyester elastomers (TPC), thermoplastic styrene block copolymers (e.g., SBS, SEBS, SEPS, SEEPS, and MBS), urethane-based thermoplastic elastomers (TPU), and thermoplastic vulcanizates or crosslinked olefin-based thermoplastic elastomers (TPV). Urethane-based thermoplastic elastomers (TPU) or thermoplastic vulcanizates or crosslinked olefin-based thermoplastic elastomers (TPV) are particularly preferred.Particularly with the latter, preferably with urethane-based thermoplastic elastomers (TPU), particularly durable products are obtained which retain their full functionality with regard to force-fitting connections even after numerous autoclaving cycles. The gripping coating can be attached to a support body of the holding member, for example, by injection molding. The support body can be made of, or comprise or consist of, a thermosetting or thermoplastic material such as PEEK, PEI, POM and / or PPSU. If a thermoplastic material is used for the support body, the gripping coating and support body can preferably also be obtained by means of 2K injection molding. In a holding member that comprises a support body and a gripping coating, the gripping coating is preferably firmly connected to the support body. In particular, the holding member has a support body.The support body is preferably attached to the gripping surface, in particular injection-molded; for example, the holding member can be manufactured as a two-component or multi-component injection-molded part. The support body preferably cooperates with the sliding wedge and / or the pretensioning means, wherein the support body can be in touching contact with the sliding wedge and / or the pretensioning means. The support body preferably forms the wedge surface. The holding member is preferably partially annular, in particular substantially semi-annular. Preferably, the holding member does not extend in a full circle around the stem. Preferably, the gripping surface and / or, in particular, the support body are semi-annular. The support body can extend in the circumferential direction by at least 90°, in particular at least 135°, preferably at least 160°, and / or less than 360°, in particular less than 180°.Particularly preferably, the gripping pad extends in the circumferential direction by less than 360°, in particular less than 180°, and / or optionally by at least 90°, in particular at least 135°, preferably at least 160°. The locking device is preferably designed such that, in particular, only the gripping pad is in contact with, or can be brought into contact with, the inner mop handle section. A locking means designed in this way is particularly ergonomic to operate and durable. By means of the gripping pad, it is possible to switch easily and reliably between the release position and the holding position. In particular, the holding member with the gripping pad can be designed to be particularly heat- and water-resistant, preferably autoclave-proof.

[0033] According to another aspect of the invention, a mop handle for a mop system, in particular for cleaning preferably sterile clean rooms, can be provided, which can be combined with the aforementioned embodiments and developments. The mop handle comprises at least one inner mop handle section and at least one outer mop handle section, which at least partially accommodates the at least one inner mop handle section. Furthermore, the mop handle comprises a locking device having at least one, in particular wedge-shaped, holding member that is movable transversely, in particular radially, to the mop handle sections. The mop handle can comprise two, three, four or more holding members. The holding member is designed and configured to hold at least one inner mop handle section in a friction-locking, longitudinally positionally stable manner relative to the at least one outer mop handle section in a holding position.Furthermore, the holding member is designed and configured to allow a translational movement of the inner mop handle section relative to the outer mop handle section in the longitudinal direction in a release position. The locking device comprises an actuating part, such as an actuating ring or an actuating sleeve, that is movable relative to the outer mop handle section, in particular rotationally, preferably in the circumferential direction of the mop handle. The actuating part is designed and configured to displace the holding member between the holding position and / or the release position.

[0034] According to a further development, the inner mop handle section has a different cross-sectional shape than the outer mop handle section. In particular, the inner mop handle section can have a circular or oval cross-sectional shape. The outer mop handle section can in particular have an oval or polygonal, preferably hexagonal or octagonal, cross-sectional shape. In particular, the polygonal cross-sectional shape has rounded corners. Surprisingly, it has been shown that by using different cross-sectional shapes, at least one of which, in particular that of the outer mop handle section, is rotationally asymmetric, an anti-twist device can be implemented in a particularly simple manner, which is particularly suitable for fiber-reinforced mop handles and / or mop handle sections.To prevent the inner mop handle section from rotating relative to the outer mop handle section, the inner mop handle section, particularly at its inner end, can be equipped with an anti-rotation lock that is shaped to the, in particular rotationally asymmetrical, preferably polygonal, inner contour of the outer mop handle section. The anti-rotation lock can be formed integrally with the inner mop handle section and / or connected to the inner mop handle section in a rotationally fixed manner. Alternatively or additionally, the anti-rotation lock is mounted within the outer mop handle section so as to be rotationally rigid and translationally movable relative to its longitudinal axis.

[0035] According to a further development, the mop handle comprises a locking device having at least one, in particular wedge-shaped, holding member that is movable transversely, in particular radially, to the mop handle sections. In a holding position, the holding member holds at least one mop handle section in a longitudinally accurate position relative to at least one other mop handle section. In a release position, the holding member permits a translational movement of the at least one mop handle section relative to the at least one other mop handle section. The holding member can preferably be spring-biased in the direction of the holding position. A mop handle with more than two mop handle sections that can be telescoped relative to one another can have a corresponding number of more than one locking device.In the holding position, the holding member preferably creates a force-locking connection between a first, in particular inner, mop handle section and a second, in particular outer, mop handle section. A force-locking connection is preferably realized relative to an inner mop handle section with a circular cross-section. The positionally accurate holding of the inner mop handle section relative to the outer mop handle section is stationary, in particular in the longitudinal direction and, if appropriate, in the circumferential direction. In particular, in the release position, a force-locking connection between the inner and outer mop handles in the longitudinal direction is released.It is conceivable that in the release position (as well as in the holding position), mobility of the inner mop handle relative to the outer mop handle in the circumferential direction is prevented, for example, by a rotation lock, such as a component extending radially through the inner and outer mop handle sections, or a rotationally asymmetric, preferably complementary, shape of the inner and / or outer mop handle, for example, in the form of a polygonal cross-sectional shape. With regard to mop handle sections that comprise or consist of aramid fiber-reinforced and / or carbon fiber-reinforced plastic, a force-locking locking device has proven particularly advantageous.

[0036] According to one embodiment, the locking device comprises at least one support section attached longitudinally to the outer mop handle section. At least one biasing means, such as a compression spring, is supported on the support section, which urges the holding member against the inner mop handle section and / or to which at least one counter-stop is attached. The counter-stop has a wedge surface that is inclined at least in sections, in particular conical, and on which the holding member is guided in the radial direction and / or longitudinal direction.

[0037] According to a further development, the locking device comprises a sliding wedge which is held stationary in the circumferential direction relative to the outer mop handle and movable in the radial direction and which is guided on a, in particular eccentric, inner contour of the actuating part in such a way that in a first relative position of the actuating part to the sliding wedge, the sliding wedge forces the holding member, in particular against the pretensioning means, into the release position, and that in a second relative position of the actuating part to the sliding wedge, the pretensioning means brings the holding member into the holding position, wherein in particular the pretensioning means presses the sliding wedge against the inner contour.

[0038] The mop handle with locking device and the components of the locking device can have the features described above, wherein the design of the mop handle or the mop handle sections or the locking device can be realized optionally, as described above, with an aramid fiber reinforced and / or carbon fiber reinforced plastic or without.

[0039] Furthermore, the invention optionally relates to a connecting part, in particular a joint connection, for the preferably detachable connection of a mop holder to a mop handle, wherein the connecting part can comprise or consist of aramid fiber-reinforced and / or carbon fiber-reinforced plastic. In particular, the connecting part comprises or consists of aramid fiber-reinforced and / or carbon fiber-reinforced plastic. The connecting part is particularly usable in combination with the previously described mop holder and / or mop handle.

[0040] The connecting part is generally designed and configured to be attachable or attached to a (lower) end of a mop handle, and is designed and configured to connect the mop handle to a mop holder. When cleaning a wall or ceiling of a cleanroom, the connecting part's weight creates a leverage effect that the cleaning staff must compensate for. The connecting part expediently weighs no more than 450 g, in particular no more than 300 g, preferably no more than 200 g or no more than 150 g. By forming the connecting part with aramid fiber-reinforced and / or carbon fiber-reinforced plastic material in a weight-saving manner, a particularly effective work relief for the cleaning staff can be created. In particular, the carbon fiber-reinforced plastic comprises carbon nanotubes.

[0041] The invention further relates to a kit of parts comprising a mop holder described above, in particular a flat mop holder, and a mop handle, which can be designed as described above. The kit of parts can further comprise at least one flat mop cover, in particular a plurality of flat mop covers. The flat mop cover preferably has a length in the range of 35 to 55 cm, in particular in the range of 40 cm to 50 cm, preferably 40 cm to 50 cm, and a width in the range of 8 or 10 cm to 20 cm, in particular in the range of 12 to 17 cm. The flat mop cover can in particular have two or more pockets opposite one another in the longitudinal or transverse direction for at least partially accommodating the flat mop holder. The flat mop cover preferably comprises a microfiber material. In particular, the kit of parts further comprises a connecting part, which can in particular be designed as described above.Additionally, the kit of parts may include a mop handle that is connected or connectable to the mop holder. The kit of parts includes a mop system according to the invention as described above.

[0042] In a preferred embodiment, the connecting piece and / or the locking device and / or a handle comprises or consists of a thermoplastic material. The thermoplastic material can preferably comprise or be a polyacetal, particularly preferably polyoxymethylene (POM).

[0043] The aramid fiber-reinforced and / or carbon fiber-reinforced plastic comprises or consists of a matrix material and a fiber material. The matrix material comprises or consists of thermosets and / or thermoplastics, in particular epoxy resins, polyester resins, vinyl ester resins, or mixtures thereof. The fiber material comprises or consists of aramid fibers and / or carbon fibers, in particular carbon nanotubes. The aramid fiber-reinforced and / or carbon fiber-reinforced plastic can have a density in the range of 1.5 to 1.6 g / cm 3 , in particular in the range of 1.53 to 1.58 g / cm 3 , preferably approximately 1.55 g / cm 3 .The mop handle, the mop holder, the connecting piece, and / or other components of the mop system can each be manufactured, for example, by hand lamination, in particular in combination with vacuum pressing, autoclave processes, injection processes, in particular resin transfer molding or reaction injection molding, winding processes, or pressing processes, in particular hot-pressing processes, wet-pressing processes, or prepreg processes. In particular, the mop handle, the mop holder, the connecting piece, and / or another component of the mop system that comprises or consists of aramid fiber-reinforced and / or carbon fiber-reinforced plastic can have a wall thickness in the range of 0.01 mm to 3 mm, preferably a wall thickness of at most 1 mm, more preferably at most 0.5 mm, and particularly preferably less than 0.3 mm.In particular, the aramid fiber-reinforced plastic comprises at least 50% aramid fiber, preferably between 60% and 80% aramid fiber, particularly preferably about 70% aramid fiber. In particular, the carbon fiber-reinforced plastic comprises at least 50% carbon fiber, preferably between 60% and 80% carbon fiber, particularly preferably about 70% carbon fiber. In addition, the fiber-reinforced plastic comprises no more than 50% matrix material, preferably between 20% and 40% matrix material, particularly preferably about 30% matrix material. The proportions can refer to wt%. It can be preferred that the fiber-reinforced plastic comprises a twill fabric, in particular a 2x2 twill fabric, such as a 3k 2x2 twill. The fiber material may preferably have a fiber diameter of not more than 0.5 mm, preferably not more than 0.3 mm, particularly preferably a fiber diameter of 0.2 mm, and / or a fiber diameter of at least 0.1 mm.The fiber-reinforced plastic material, in particular the aramid fiber-reinforced and / or carbon fiber-reinforced plastic material, can in particular be formed from a prepreg material in the form of (carbon) fiber sheets or a (carbon) fiber tube. The prepreg material can have unidirectional fiber layers. The prepreg material can comprise prepreg fabric layers. In particular, a prepreg material layer has a thickness of at least 0.03 mm, preferably at least 0.075 mm, and / or not more than 0.3 mm, preferably not more than 0.2 mm or not more than 0.15 mm. The (carbon) fiber material is formed from at least one prepreg material layer, in particular at least two prepreg material layers, and / or not more than 15 prepreg material layers, preferably not more than 11 prepreg material layers, particularly preferably not more than four prepreg material layers.

[0044] Further features and advantages of the invention will become apparent from the following description, in which preferred embodiments of the invention are explained by way of example with reference to schematic drawings. In the drawings: Fig. 1 a perspective view of a mop system according to the invention; Fig. 2 a sectional view of the mop system according to Figure 1 ; Fig. 3a a detailed view of a locking device in a stop position; Fig. 3b a sectional view of the locking device according to Figure 3a according to section line BB; Fig. 3c a sectional view of the locking device according to Figure 3b according to section line CC; Fig. 3 a sectional view of the locking device according to Figure 3b according to section line DD; Fig. 3e a schematic side view of the locking device according to Figure 3d; Fig. 4a a schematic view of a locking device according to an embodiment with handle sections of different cross sections; Fig. 4b a schematic cross-sectional view through the outer handle section at the inner end of the inner handle section; Fig. 4c a further schematic cross-sectional view through the mop handle according to the section line DD; Fig. 5 a special embodiment of a mop holder; Fig. 6 a sectional view of a first actuating part of an alternative locking device in a stop position; Fig. 7 another sectional view of the alternative locking device according to Figure 6 ; Fig. 8 a sectional view of a second actuating part of the alternative locking device; Fig. 9 a detailed view of a holding member for a locking device; and Fig. 10 a further detailed view of the holding member according to Fig. 9 .

[0045] In the following description of preferred embodiments, the same or similar reference numerals are used for the same or similar components to simplify readability.

[0046] A mop handle generally bears the reference number 1. A mop holder generally bears the reference number 2. A connecting part generally bears the reference number 8. A mop system generally bears the reference number 10. Flat mop holder 2, connecting piece 8, mop handle 1 and / or mop cover 11 can belong to a kit of parts from which a mop system 10 can be formed.

[0047] In the exemplary embodiment illustrated in the figures, at least some of the components of a mop system 10 comprise or consist of an aramid fiber-reinforced and / or carbon fiber-reinforced plastic. In this way, significant weight savings can be achieved, thus supporting cleaning personnel during continuous use of the mop system 10, particularly when cleaning wall surfaces and / or ceiling surfaces, for example, in a clean room. For the sake of ease of reading, the following description of exemplary embodiments describes a particularly preferred embodiment according to which the components are optionally made of carbon fiber-reinforced plastic.

[0048] Figure 1 shows a perspective view of a mop system 10. The mop system 10 comprises as essential components a mop handle 1 and a mop holder 2. As in Figure 2As shown, the mop holder 2 can carry a mop cover 11.

[0049] Figure 2 shows a mop system 10. A flat mop holder 2 is provided at the lower end of the mop system 10. The flat mop holder 2 is movably connected to the mop handle 1 by a connecting piece 8.

[0050] The mop holder 2 can have a release device for the mop cover 11, wherein the release device can comprise, for example, two mop holding wings 21, 22 which can be pivoted relative to one another, as in Figure 1The mop holding wings 21 and 22 can, for example, be foldable against each other along their adjacent rear edges 25. The mop holder 2 can have a flat rectangular shape, which is defined by opposing side edges 26, 27 and opposing front edges 24 of the two mop holding wings 21 and 22. The mop holding wings 21 and 22 together form a flat surface for wiping a flat wall, ceiling or floor surface. On the common underside 20 of the mop holding wings 21 and 21, as shown in the Figure 2 schematically shown, rest against the inner side 12 of the mop cover 11. Opposite the inner side 12, the mop cover 11 has an outer or active side 13, which is brought into contact with a surface to be treated during operation. The connecting piece 8 is arranged on the upper side 28 of the mop holder 2, which faces the mop handle 1.

[0051] In the illustrated embodiment, the first mop holding wing 21 and the second mop holding wing 22 are made of carbon fiber reinforced plastic. Reinforcing ribs 29 made of carbon fiber reinforced plastic can be formed on the upper side 28 of the mop holder 2. The joints on the rear edges 25 of the mop holding wings 21, 22 can comprise or consist of another material, such as stainless steel and / or POM.

[0052] The connecting piece 8, with which the mop holder 2 is connected to the mop handle 1, preferably comprises a rotary-tilt joint, which allows a tilting inclination of the mop handle 1 relative to the mop holder 2 about a tilting axis K and a rotating inclination of the mop handle 1 relative to the mop holder about a rotation axis D. The rotation axis D and the tilting axis K are oriented transversely, preferably orthogonally, to one another. The connecting piece 8 comprises carbon fiber reinforced plastic as a structural material, which mechanically supports the joint pairs. The joint pairs can comprise or consist of another material, such as stainless steel and / or a plastic material, in particular selected from a group consisting of thermosets, preferably epoxy resins, thermoplastics and mixtures thereof, for example POM.

[0053] The mop handle 1 is connected or connectable at its lower end to the connecting piece 8. The mop handle 1 comprises a lower mop handle section 3 and an upper mop handle section 4, which are telescopically movable relative to one another in the longitudinal direction T. In the illustrated embodiment, the lower mop handle section 3 is formed as an inner mop handle section, which has a smaller diameter than the upper, outer mop handle section 4. The outer mop handle section 5 accommodates a portion of the inner mop handle section 3 in an internal cavity. The length 35 of the inner mop handle section 3 that can be accommodated in the outer mop handle section 5 can correspond almost to the total length 30 of the inner mop handle section 3.

[0054] A handle 6 can be provided at the upper end of the mop handle 1. The handle 6 can be made of a material other than carbon fiber reinforced plastic, for example, stainless steel and / or POM, or can be formed therefrom. The handle 6 can include anti-slip protection, for example in the form of a shield 61. The shield 61 can be made of carbon fiber reinforced plastic. Alternatively or additionally, the handle 6 can have a knob 62, for example, spherical, to facilitate working on wall or ceiling surfaces.

[0055] A locking device 4 is attached to the mop holder-side end 51 of the upper mop handle section 5, which will be described below with reference to the Figures 3a to 3ddescribed in more detail. The locking device 4 generally serves to hold the inner mop handle section 3 in position relative to the outer mop handle section 5. The locking device 4 can comprise carbon fiber reinforced plastic as well as other materials, for example stainless steel and / or a plastic material, in particular selected from a group consisting of thermosets, preferably epoxy resins, thermoplastics and mixtures thereof, for example POM. For example, the structural components of the locking device can be made of POM or comprise POM, whereas screws and / or spring components of the locking device 4 can comprise or consist of steel, for example.

[0056] In the illustrated embodiment, the tubular mop handle sections 3 and 5 are made of carbon fiber reinforced plastic. In the preferred embodiment shown here, the mop handle sections 3 and 4 have a hollow cylindrical shape with a circular cross-section. A design with an inner, lower mop handle section 3 and an outer, upper mop handle section 5 is shown. It should be understood that, as an alternative to the illustrated design, the outer mop handle section 5 can be designed as the lower section toward the mop holder and the inner mop handle section 3 as the upper section away from the mop holder. In this alternative design (not shown), the locking device 4 would expediently be arranged at the end of the outer mop handle section away from the mop holder.

[0057] In the radial direction R between the inner mop handle section 3 and the outer mop handle section, sliding pieces 32, 34, for example sliding rings, can be arranged, which can be made of a material other than carbon fiber reinforced plastic, in particular a plastic material selected from a group consisting of thermosets, preferably epoxy resins, thermoplastics and mixtures thereof, for example POM. A sliding piece 32 at the end of the inner mop handle section 3 remote from the mop holder, which is located inside the outer mop handle section 5, is in Figure 2 The support section 54, described in more detail below, at the lower end 51 of the upper mop handle section 5 forms a further sliding piece 34. The sliding pieces 32, 34 allow low-friction and jam-free translational telescopic mobility of the inner mop handle section 3 relative to the outer mop handle section 5 in the longitudinal direction T.

[0058] The Figures 3a to 3d show various detailed views of the locking device 4. With the locking device 4, a force-locking, position-accurate connection can be selectively opened or closed by the cleaning staff. In a holding position, the locking device 4 forms the force-locking, position-accurate connection between the inner mop handle 3 and the outer mop handle 5 using several holding elements 43. In the release position of the locking device 4, the force-locking, position-accurate connection between the inner mop handle section 3 and the outer mop handle section 5 is released, so that the mop handle sections 3, 5 can be telescoped relative to one another.

[0059] In order to control the locking device 4, the locking device 4 has an actuating part 45, which in the exemplary embodiment shown here is formed as a cylindrical sleeve 45. The sleeve 45 can be moved relative to the longitudinal axis of the mop handle 1 in the circumferential direction U between a loose position and a Figures 3a to 3d shown stop position. In the stop position of the actuating part 45, the holding member 43 is in the holding position. In the release position of the actuating part 45, the holding member 43 is in the release position.

[0060] The support section 54 is fixedly attached to the outer mop handle section 5 by a fastening means 52. The fastening means 52 can be guided in the radial direction R through the wall of the outer mop handle section 5 to the inner mop handle section 3 through the wall of the inner mop handle section 3 in order to prevent rotational mobility of the inner mop handle section R in the circumferential direction U relative to the outer mop handle section 5. The actuating sleeve 45 is rotatably mounted on the support section 54.

[0061] A multi-purpose sleeve 55 is rigidly attached to the support section 54. The multi-purpose sleeve 55 acts, among other things, as a counter-stop 44. The counter-stop 44 is described in detail below. The multi-purpose sleeve 55 accommodates two sliding wedges 41, which are diametrically opposed in the radial direction, in a radially movable manner. The multi-purpose sleeve 55 forms a respective guide for the sliding wedges 41, which prevents mobility of the sliding wedges 41 relative to the outer mop handle section 5 in the circumferential direction U as well as in the longitudinal direction T. In the guide of the multi-purpose sleeve 55, the sliding wedge 41 is movable exclusively in the radial direction R.

[0062] On the radial inside, the sliding wedge 41 is in contact with two pairs of holding members 43. On the radial outside, the sliding wedge 41 is mounted on an eccentric sliding surface 40 of the actuating part 45. When the actuating part 45 is rotated in the circumferential direction U, the sliding surface 40 moves along the radially outer side surface of the sliding wedge 41. The radially outer side surface of the sliding wedge 41 and the sliding surface 40 of the actuating part 45 are shaped to match one another. Due to the eccentricity of the sliding surface 40, when the actuating sleeve 45 is rotated relative to the mop handle 1, the sliding wedge 41 moves towards the mop handle 1 or away from the mop handle 1 in the radial direction R. The sliding wedge 41 and the actuating sleeve 45 are matched to one another in such a way that in the stop position of the actuating sleeve 45 the sliding wedge 41 assumes its radially outermost position.In the release position of the actuating sleeve 45, the sliding wedge 41 is in its radially innermost position.

[0063] The multi-purpose sleeve 55 serves as a counter-stop 44 for the holding members 43. In the illustrated embodiment, the locking device 4 has four ring-shaped holding members 43. The holding members 43 extend in the circumferential direction partially around the outside of the inner mop handle section 3, as shown in Figure 3b can be seen. In the longitudinal direction T, two holding members 43 are arranged adjacent to one another and are held on different wedge or stop surfaces 46 of the counter-stop 44. The upper wedge surface 46 tapers conically downwards and the lower wedge surface 46 tapers conically upwards. The radial outer side of the holding members 43 is shaped, at least in sections, to match the conical wedge surface 46. In the radial direction R, two holding members 43 are arranged diametrically opposite one another in pairs.

[0064] The locking device 4 comprises two compression springs 53, which lie opposite one another in the longitudinal direction T, as pretensioning means. The upper compression spring 53 is supported on the support section 54 in the longitudinal direction T and exerts a downward pretensioning force on the upper pair of holding members 43 in accordance with the longitudinal direction T. At the lower end of the multi-purpose sleeve 55, a plate-like second support section 56 is provided, on which the lower compression spring 53 is supported in the longitudinal direction T. The lower compression spring 53 exerts an upward pretensioning force on the lower pair of holding members 43 in accordance with the longitudinal direction. The compression springs 53 urge the holding members 43 assigned to them in the longitudinal direction T against the respective wedge surface 46. The spring force acting in the longitudinal direction on the holding members 43 urges the holding members 43 inward along the wedge surface 46 in the radial direction R against the inner mop handle section 3.In the holding position, the holding members 43 are pressed against the inner mop handle section 3 in such a way that a force-locking connection is realized between the outer mop handle section 5 and the inner mop handle section 3. The force-locking connection is advantageously realized by a gripping pad 48 arranged on the respective inner surface 49 of the holding members 43, as described below with reference to FIG. Figures 9 and 10 described in detail. The gripping layer 48 forms an adhesive pair with the outer side of the inner mop handle section 3, with a high coefficient of static friction. The gripping layer 48 is preferably made of an elastic material. For example, the gripping layer 48 comprises or consists of a TPE material, in particular a TPU or TPV material, preferably TPU material.

[0065] To release the force-locking connection, the sliding wedge 41, in the release position of the actuating part 45, pushes between the holding members 43 adjacent in the longitudinal direction T and forces them apart in the longitudinal direction T against the force of the compression spring 53. Because the sliding wedge 41 forces the holding members 43 out of the holding position in the longitudinal direction T, the holding members 43 move into a release position remote from the mop handle 3 in the radial direction R. When the holding members 43 are forced away from the mop handle section 3 by the sliding wedge 51, the force-locking connection is released and the inner mop handle section 3 is freely telescopically movable in the longitudinal direction T relative to the outer mop handle section 5 (not shown in detail).

[0066] Figure 3e shows a schematic side view of the multifunctional sleeve 55 of the locking device 4 with a viewing angle corresponding to the view of Figure 3dThe multifunctional sleeve 55 comprises second wedge surfaces 57 that cooperate with the holding members 43. When the holding members 43 are released from the holding position by the sliding wedge 41, the second wedge surfaces 57 cause the holding members 43 to additionally undergo a movement away from each other in the radial direction R during their movement in the longitudinal direction. The second wedge surfaces 57 ensure that the sliding wedge 41 moves the holding members 43 away from the inner mop handle section 3 in the radial direction R.

[0067] The outer circumference of the multifunctional sleeve 55 is preferably ideally cylindrical and coaxial with the mop handle 1. The actuating member 41 expediently has an adjustment section 42 with an ideally cylindrical inner circumference formed coaxially with the mop handle 1. The adjustment section 42 slides along the outer circumference of the multifunctional sleeve 55.

[0068] The Figures 4ashows a schematic view of a mop system 10 near its locking device 4, wherein the mop system 10 comprises handle sections 3 and 5 of different cross-sectional shapes. The outer, upper handle section 5 has an octagonal cross-sectional shape in the illustrated embodiment. The inner, lower handle section 4 expediently has a circular cross-sectional shape.

[0069] The Figures 4b and 4cshow schematic cross-sectional views through the outer stem section 5 at the inner end of the inner stem section 3. At the end of the inner stem section 3 arranged inside the outer stem section 5, a sliding piece 32 is rotationally rigidly connected to the inner stem section 3 as an anti-twist device. The sliding piece 32 is adapted in sections to complement the rotationally asymmetrical octagonal cross-sectional shape of the outer stem section 5 and thus functionally realizes a fastening means 52. The inner stem section 3 is guided in the interior of the outer stem section 5 by means of the sliding piece 32 in a translationally movable and rotationally rigid manner.

[0070] The mop holding wings 21, 22 can have one or more longitudinal ribs 29 in the transverse direction, extending in the direction of the upper side 28 of the flat mop holder 2. Additionally or alternatively, a mop holding wing 21, 22 can have substantially flat, preferably substantially coplanar, flat sections. The longitudinal rib 29 preferably extends from a flat section in the direction of the upper side 28. As shown in Figure 5 As can be seen, the longitudinal rib 28 can be formed as a convex curvature of the mop holding wing 21, 22 in the vertical direction V, which extends parallel to the pivot axis or longitudinal direction L.

[0071] The Figures 6 to 8 show an alternative, two-part locking device 4a, 4b which instead of the above-mentioned Figures 3a to 3edescribed can be used. For the function of the locking device 4a, 4b, with the exception of the direction of actuation of the actuating members 4a, 4b and their coupling with a cable 9 as a force transmission means, the above essentially applies. At the upper end of the inner mop handle 3, a sliding piece 32 is fastened, with which the inner mop handle 3 is guided in the outer mop handle 5. Additionally or alternatively, two diametrically opposed guide rollers 33 are arranged at the upper end of the inner mop handle 3, with which guide rollers the inner mop handle 3 rolls on the inside of the outer mop handle 5. In the embodiment shown, the outer mop handle 5 has an octagonal cross-sectional shape and the inner mop handle 3 has a circular cross-sectional shape.

[0072] A support section 54 is rigidly attached to the lower end of the upper, outer mop handle 5. An actuating sleeve 45a is mounted on the support section 54 for movement in the translation direction T. The actuating sleeve 45a is arranged at the lower end of the locking device 4a. A spring urges the locking device 45a into the position shown in the figures. This position can be referred to as the stop position because, in this position, the holding members 43 are in contact engagement with the inner mop handle 3.

[0073] The retaining members 43 are urged against inclined wedge surfaces 46 by prestressing means 53, whereby the inclined wedge surfaces 46 urge the retaining members 43 in the radial direction R against the inner mop handle 3. The wedge surfaces 46 are formed on the sliding wedge 41, which is arranged between the retaining members 43 in the translation direction T and is supported on the outside in the radial direction against a conical sliding surface 40. The sliding surface 40 is connected to the actuating sleeve 45a.

[0074] The actuating sleeve 45a of the first locking device 4a can be displaced in the translational direction T against the force of the spring. The sliding surface 40 is fixedly connected to the actuating sleeve 45a and performs the same movement as the actuating sleeve 45a. When the conical sliding surface 40 moves upward in the translational direction T, the sliding surface 40 urges the sliding wedge 41 inward in the radial direction R. The holding members 43 then slide along the wedge surfaces 46 of the sliding wedge 41 in the translational direction T against their preloading means 53, thereby releasing the inner mop handle 3.

[0075] In Figure 8 An optional second locking device 4b is shown. An actuating button 45b is accommodated in the knob 62 of the handle 6. By a translational movement of the actuating button 45b, the holding member 43, which is designed as follows with reference to the Figures 9 and 10can be designed, between the holding position and the release position. The second locking device 4b is designed and configured to cause the first locking device 4b to move the holding member 43 between the stop position and the release position. A spring biases the actuating button 45b toward the holding position. A cable pull 9 serves as the force transmission means between the second locking device 4b and the first locking device 4a.

[0076] The cable 9 has a first end, which is expediently held firmly to the actuating sleeve 45a by a first anchor 91. A second anchor 92 fixes the second end of the cable 9 to the actuating button 45b. When the actuating button 45b is activated, the activation movement is transmitted to the actuating sleeve 45a via the cable 9. According to an alternative embodiment not shown in detail, the second actuating part 4b can act directly on the holding member with the force transmission means without a first actuating part.

[0077] From the second anchorage 92, the cable pull 9 initially runs over a deflection pulley 95 that is fixedly mounted on the upper end of the outer mop handle 5 and can rotate. From the deflection pulley 95, the pull rope of the cable pull 9 extends into the inner mop handle 3 and runs around a deflector 93 that is fixedly mounted on the lower end of the inner mop handle 3.

[0078] From the lower deflector 93, the pull rope 9 runs to an insertion deflector 94b at the upper end of the inner mop handle 3. The insertion deflector 94b is designed and configured to guide the pull rope securely into the circumferential gap between the outer mop handle 5 and the inner mop handle 3. The pull rope 9 runs from the upper insertion deflector 94b to a lower insertion deflector 94a at the lower end of the outer mop handle 5. The lower insertion deflector 94a is also designed and configured to guide the pull rope securely into the circumferential gap between the outer mop handle 5 and the inner mop handle 3.

[0079] From the lower insertion deflector 94a, the pull cable runs via a deflector 96 fixedly held on the support section 54 to the first anchor 91. When the actuating button 45b is pressed, it carries the second end of the cable pull 9 via the second anchor 92. The cable movement is transmitted by the cable pull 9 and moves the first anchor 91 of the actuating sleeve 45a in a translation direction T.

[0080] Thanks to the S-shaped guidance of the pull cable along the insertion deflectors 94a, 94b and around the lower deflector 93, the cable pull can be used as a length-adjustable power transmission means in any telescopic position of the mop system 10.

[0081] Figures 9 and 10show a detailed view of an exemplary holding member 43. The holding member 43 has a gripping coating 48 on its inner surface 49 facing the inner mop handle section 3. In the illustrated embodiment, the holding member 43 is composed of a support body 47 and a gripping coating 48.

[0082] In this embodiment, the support body 47 is dimensionally stable, and the gripping coating 48 is elastic. In particular, the gripping coating comprises or consists of an elastomer material, in particular a thermoplastic elastomer, preferably a TPU (thermoplastic elastomer) and / or TPV (thermoplastic vulcanizate) material. In the illustrated embodiment, the support body 47 and the gripping coating 48 attached thereto of the two holding members each extend approximately 170° in the circumferential direction and are preferably partially annular, in particular substantially semi-annular.

[0083] The support body 47 preferably comprises or consists of a thermoset or a thermoplastic, such as PEEK, PEI, POM, and / or PPSU. The gripping coating 48 is attached to the support body 47. For example, the holding member can be manufactured as a two-component or multi-component injection-molded part. The support body 47 is preferably matched to the preloading means 53 and can be in contact therewith. The support body 47 forms the wedge surface 46, which is designed to cooperate with the second wedge surface 57 and the sliding wedge 41. Reference symbol

[0084] 1 Mop handle 2 Mop holder 3 Inner mop handle section 4, 4a, 4b Locking device 5 Outer mop handle section 6 Handle 8 Connecting piece 9 Cable pull 10 Mop system 11 Mop cover 12 Inside 13 Outside 20 Bottom 21, 22 Mop holder wing 24 Front edge 25 Rear edge 26, 27 Side edge 28 Top 29 Reinforcing ribs 30 Total length 32, 34 Slider 33 Guide roller 35 Absorbed length 40 Slide surface 41 Slide wedge 43 Holding link 44 Counter stop 45, 45a Actuating sleeve 45b Actuating button 46 Wedge surface 47Supporting body 48Gripping surface 49Inner surface 51Mop holder-side end 52Fastening means 53Pre-tensioning means 54Support section 55Multi-purpose sleeve 56Support section 57Second wedge surface 61Sign 62Knob 91, 92Anchoring 93, 96Deflection device 94a, 94bIntroduction deflector 95Deflection pulley DRotation axis KKilting axis RRadial direction TLongitudinal direction UCircumferential direction

Claims

1. Mop system (10) for cleaning clean rooms, comprising a mop holder (2) for a mop system (10) for cleaning clean rooms, arranged and adaped to hold a mop cover (11), wherein the mop holder (2) comprises or consists of an aramid fibre-reinforced and / or carbon fibre-reinforced plastic, and a mop handle (1), which comprises at least one tubular mop handle section (3, 5) consisting of or comprising an aramid fiber-reinforced and / or carbon fiber-reinforced plastic.

2. Mop system (10) according to claim 1, wherein the mop holder (2) has a rectangular basic shape, wherein the mop holder (2) has a length in the range of 35 to 55 cm, and a width in the range of 8 to 20 cm.

3. Mop system (10) according to claim 1 or 2, characterized in that the mop holder (2) comprises at least one holding wing (21, 22), wherein at least one holding wing (21, 22) has a longitudinal rib (29) which is curved convexly towards the upper side (28).

4. Mop system (10) according to any of the preceding claims, wherein it is heat-resistant to 140°C and / or resistant to cleaning and / or disinfecting agents.

5. Mop system (10) according to one of the preceding claims, wherein the aramid fiber-reinforced and / or carbon fiber-reinforced plastic of the mop handle and / or of the at least one mop handle section, comprises plastic material.

6. Mop system (10) according to one of the preceding claims, wherein the at least one mop handle section (3, 5) has a rounded cross-sectional shape.

7. Mop system (10) according to one of the preceding claims, comprising a plurality of mop handle sections (3, 5) movable telescopically relative to one another.

8. Mop system (10) according to claim 7, comprising at least one inner mop handle section (3) and at least one outer mop handle section (5) which receives the at least one inner mop handle section (3) at least in sections.

9. Mop system (10) according to claim 8, wherein the inner mop handle section (3) has a different cross-sectional shape than the outer mop handle section (5).

10. Mop system (10) according to one of claims 7 to 9, comprising a locking device (4, 4a, 4b) which has at least one holding member (43) which is movable transversely to the mop handle sections (3, 5) and which, in a holding position, holds at least one mop handle section (3) in the longitudinal direction in a fixed position relative to the at least one other mop handle section (5) and which, in a release position, permits a translational movement (T) of the at least one mop handle section (3) relative to the at least one other mop handle section (5) in the longitudinal direction.

11. Mop system (10) according to claim 10, wherein the at least one holding member (43) has at least one gripping coating (48), which is arranged on an inner surface (49) facing the at least one mop handle section (3), wherein the holding member (43) has a support body (47) to which the gripping coating (48) is fastened.

12. Mop handle (1) for a mop system (10) for cleaning clean rooms, comprising at least one inner mop handle section (3) and at least one outer mop handle section (5) which receives the at least one inner mop handle section (3) at least in sections, and a locking device (4, 4a, 4b) which has at least one holding member (43) which is movable transversely to the mop handle sections (3, 5) and which, in a holding position, holds at least one mop handle section (3) in the longitudinal direction in a fixed position relative to the at least one other mop handle section (5) and which, in a release position, permits a translational movement (T) of the at least one mop handle section (3) relative to the at least one other mop handle section (5) in the longitudinal direction, wherein the mop handle (1) comprises at least one tubular mop handle section (3, 5) consisting of or comprising an aramid fiber-reinforced and / or carbon fiber-reinforced plastic.

13. Mop handle (1) according to claim 12, wherein the at least one holding member (43) has at least one gripping coating (48), which is arranged on an inner surface (49) facing the at least one mop handle section (3), wherein the gripping coating (48) comprises or consists of a thermoplastic elastomer.

14. Use of the mop system (10) according to one of claims to 11 for cleaning floors, walls and / or ceilings in clean rooms.

15. Kit of parts, comprising a mop system (10) according to one of claims 1 to 11 further comprising a flat mop cover (11).

Images