EP1474029B1 - Floor cleaning device - Google Patents
Floor cleaning device Download PDFInfo
- Publication number
- EP1474029B1 EP1474029B1 EP02758220A EP02758220A EP1474029B1 EP 1474029 B1 EP1474029 B1 EP 1474029B1 EP 02758220 A EP02758220 A EP 02758220A EP 02758220 A EP02758220 A EP 02758220A EP 1474029 B1 EP1474029 B1 EP 1474029B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cleaning device
- housing
- floor cleaning
- top side
- holes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/10—Hydraulically loosening or dislodging undesirable matter; Raking or scraping apparatus ; Removing liquids or semi-liquids e.g., absorbing water, sliding-off mud
- E01H1/101—Hydraulic loosening or dislodging, combined or not with mechanical loosening or dislodging, e.g. road washing machines with brushes or wipers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
- B08B3/024—Cleaning by means of spray elements moving over the surface to be cleaned
Definitions
- the invention relates to a floor cleaning device having a hood-shaped, on its underside open, laterally closed at its top and a housing in this rotatable about a vertical axis spray arm having at least one open towards the bottom of the housing towards outlet for a cleaning medium, wherein in the top of the housing at least one aperture is arranged, is sucked through the air from the environment into the interior of the housing and which is completely or partially closed.
- This air cushion effect is permanently provided in the known floor cleaning device, as always ambient air is sucked through the openings in the housing when the spray arm rotates.
- the present invention seeks to improve a generic floor cleaning device so that no spills of the cleaning fluid escape from the interior of the housing to the outside, while on the other hand ambient air can freely enter the interior.
- a closure body is mounted on the housing, which along the top of the cross section of the openings more or less overlapping between an opening releasing openings and a closing position closing this is displaceable.
- the closure body may be arranged on the inside of the upper side.
- the closure body has at least one opening which, in the open position of the closure body, covers at least one opening of the housing and is displaced laterally relative to the latter in the closed position.
- a plurality of openings are arranged on the upper side of the housing. These can be arranged in groups, between which break-through areas remain.
- the apertures are distributed around the axis of rotation of the spray arm in the upper side of the housing, so that this is sucked evenly distributed over the circumference when sucking in ambient air.
- closure body rotatably rests against the top, in particular, the axis of rotation of the closure body coincide with the axis of rotation of the spray arm.
- closure body extends substantially over the entire top of the housing.
- the closure body is plate-shaped.
- closure body is displaceable between its open position and its closed position by a handling element arranged on the outside of the housing.
- the upper side is ribbed so that alternately outwardly and inwardly open grooves adjacent to each other, and that an opening in the partition between adjacent grooves is provided to form an opening at the top. This results in a flow path which passes through the adjacent grooves and the opening connecting them. These openings are located only in certain areas of the grooves in these partitions, so that there are areas with openings and areas without openings in the top. The areas with openings can be covered by the closure body more or less and thereby closed.
- the spray arm has at least one wing-shaped section which, in the manner of a propeller or fan, sucks in an airflow from the environment through the openings at the top and releases it again through the open underside of the housing.
- the spray arm may in particular have two wing-shaped sections which are diametrically opposed on both sides of the axis of rotation.
- the floor cleaning device 1 shown in the drawing comprises a hood-shaped or bell-shaped, circular in cross-section housing 2 with a circumferential, closed side wall 3, an open bottom 4 and a closed, slightly upwardly curved top 5.
- the housing can at its open bottom. 4 surrounded by a brush ring, not shown in the drawing be, which closes the interior at the lower end of the side wall 3 to the environment.
- a bearing bush 6 is arranged with a vertical bearing bore 7 in the middle, in which a bearing shaft 8 is rotatably mounted.
- the bearing shaft 8 carries two diametrically opposed, radially projecting spray arms 10 which carry at their free ends in each case an outlet nozzle 11 whose Outlet direction in a direction parallel to the side wall 3 extends obliquely downward plane, namely opposite spraying arms 10 in the opposite direction, so that 10 rectified torques are exerted by a leaking from the outlet nozzle liquid jet on the spray arm 10, the spray arm 10 by the the bearing shaft 8 set the rotation axis formed in rotation.
- a discharged through the outlet nozzle 11 liquid jet is directed through the open bottom 4 of the housing 2 against a surface to be cleaned, on which the floor cleaning device 1 is placed.
- the spray arms 10 could theoretically be rotatably connected to the bearing shaft 8, which then rotates with the spray arms 10, but it is also possible to rotatably support the bearing shaft 8 in the bearing bore 7 and the spray arms 10 in a suitable manner on the bearing shaft 8 rotatable to store. In both cases, the bearing shaft 8 may also be adjustable in height, but this will not be detailed.
- the top 5 of the housing 2 is ribbed and thereby has a plurality of mutually parallel, immediately adjacent, mutually outwardly and inwardly open grooves 19 which extend parallel to the supply pipe 12 and are rectilinear ( Figure 2). These grooves 19 are separated by partitions 20, which form the side surfaces of the grooves 19, respectively.
- openings 22 are provided in the partitions 20, each connecting an outwardly pointing groove 19 and the adjacent inwardly facing groove 19 and thus forming a flow path through which ambient air can enter the interior 9 of the housing 2 (Figure 6).
- openings 22 are provided in the partitions 20, each connecting an outwardly pointing groove 19 and the adjacent inwardly facing groove 19 and thus forming a flow path through which ambient air can enter the interior 9 of the housing 2 ( Figure 6).
- sub-areas 23 of the upper side 5 are missing such openings 22, so separate the partition walls 20 adjacent grooves 19 completely separate from each other in these sub-areas 23, so that in these sub-areas 23, the suction of ambient air permitting flow paths are present (Figure 5).
- the sub-regions 21 and 23 are each formed by adjoining circular sectors extending between the bearing bush 6 on the one hand and the side wall 3 on the other hand and alternate, the opening angle of such a sector-shaped portion is 30 ° in the illustrated embodiment.
- a closure plate 25 is rotatably mounted on a bearing bush 6 concentrically surrounding, optionally integrally formed with the bearing bushing 6 bearing ring 24 which applies tightly against the inner wall of the top 5 and this covers almost completely.
- this closure plate 25 are sector-shaped cutouts 26 with an opening angle corresponding to the opening angle of the portions 21 and 23, these cutouts 26 are separated by closed portions 27 from each other, which also extend over an opening angle of about 30 °.
- closure plate 25 in different angular positions, this carries on its upper side a pin 28 which protrudes through a circumferential slot 29 in the top 5 and serves as a handling element.
- the spray arms 10 carry wing-shaped widenings 30, which generate a flow of air during rotations of the spray arms in the manner of a propeller or fan that directs ambient air into the interior 9 in the open portions 21 through the openings 22 and then this ambient air through the open bottom 4 of the Housing 2 returns.
- an air cushion forms in the region of the inner space 9, by which the floor cleaning device 1 is kept at a distance from the surface to be cleaned.
- This air flow can be controlled by the closure plate 25 is brought via the pin 28 in different angular positions, in which it more or less covers the open portions 21 and thereby changes the available flow of air for the air flow.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Nozzles For Electric Vacuum Cleaners (AREA)
- Cleaning In General (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Pinball Game Machines (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Abstract
Description
Die Erfindung betrifft ein Bodenreinigungsgerät mit einem haubenförmigen, zu seiner Unterseite hin offenen, seitlich und an seiner Oberseite abgeschlossenen Gehäuse und einem in diesem um eine senkrechte Achse drehbaren Sprüharm, der mindestens einen zur offenen Unterseite des Gehäuses hin gerichteten Auslaß für ein Reinigungsmedium aufweist, wobei in der Oberseite des Gehäuses mindestens eine Durchbrechung angeordnet ist, durch die Luft aus der Umgebung in den Innenraum des Gehäuses angesaugt wird und die völlig oder teilweise verschließbar ist.The invention relates to a floor cleaning device having a hood-shaped, on its underside open, laterally closed at its top and a housing in this rotatable about a vertical axis spray arm having at least one open towards the bottom of the housing towards outlet for a cleaning medium, wherein in the top of the housing at least one aperture is arranged, is sucked through the air from the environment into the interior of the housing and which is completely or partially closed.
In der DE 25 48 432 C2 ist ein Bodenreinigungsgerät beschrieben, bei dem durch Durchbrechungen in der Oberseite des Gehäuses hindurch Umgebungsluft in den Innenraum des Gehäuses eintreten kann. Die Umgebungsluft wird dabei durch die Rotationsbewegung des Sprüharms angesaugt und von diesem durch die offene Unterseite des Gehäuses wieder ausgestoßen. Dadurch bildet sich unterhalb des Gehäuses ein Luftpolster, welches das Gehäuse anhebt und im Abstand zu der zu reinigenden Fläche hält.In DE 25 48 432 C2 a floor cleaning device is described in which through openings in the top of the housing through ambient air can enter the interior of the housing. The ambient air is sucked in by the rotational movement of the spray arm and ejected from it again through the open bottom of the housing. As a result, forms below the housing, an air cushion, which raises the housing and keeps at a distance to the surface to be cleaned.
Dieser Luftpolstereffekt ist bei dem bekannten Bodenreinigungsgerät dauerhaft vorgesehen, da durch die Öffnungen im Gehäuse immer Umgebungsluft angesaugt wird, wenn sich der Sprüharm dreht.This air cushion effect is permanently provided in the known floor cleaning device, as always ambient air is sucked through the openings in the housing when the spray arm rotates.
Bei einem weiteren bekannten Bodenreinigungsgerät (US-A-5 970 574), das ähnlich ausgebildet ist, sind die Durchbrechungen verschließbar ausgebildet. Im geöffneten Zustand besteht jedoch die Gefahr, daß aus dem Innenraum des Gehäuses Spritzer der Reinigungsflüssigkeit nach außen austreten.In another known floor cleaning device (US Pat. No. 5,970,574), which is of similar construction, the openings are made lockable. When open, however, there is a danger that emerge from the interior of the housing splashes of cleaning fluid to the outside.
Demgegenüber liegt der Erfindung die Aufgabe zugrunde, ein gattungsgemäßes Bodenreinigungsgerät so zu verbessern, daß aus dem Innenraum des Gehäuses keine Spritzer der Reinigungsflüssigkeit nach außen austreten, während andererseits Umgebungsluft in den Innenraum ungehindert eintreten kann.In contrast, the present invention seeks to improve a generic floor cleaning device so that no spills of the cleaning fluid escape from the interior of the housing to the outside, while on the other hand ambient air can freely enter the interior.
Diese Aufgabe wird bei einem Bodenreinigungsgerät der eingangs beschriebenen Art erfindungsgemäß dadurch gelöst, daß die Durchbrechung oder die Durchbrechungen labyrinthförmig ausgebildet ist bzw. sind.This object is achieved in a floor cleaning device of the type described above according to the invention in that the opening or the openings is formed labyrinth or are.
Dadurch, daß sich der Weg der angesaugten Umgebungsluft mehrfach in seiner Richtung ändert, wird erreicht, daß aus dem Innenraum des Gehäuses keine Spritzer der Reinigungsflüssigkeit nach außen austreten, während andererseits Umgebungsluft über diesen abgewinkelten Strömungsweg in den Innenraum ungehindert eintreten kann.Due to the fact that the path of the sucked ambient air changes several times in its direction, it is achieved that no splashes of the cleaning liquid escape from the interior of the housing to the outside, while on the other hand ambient air can enter unhindered via this angled flow path into the interior.
Bei einer bevorzugten Ausführungsform ist vorgesehen, daß zum Verschluß der Durchbrechungen ein Verschlußkörper an dem Gehäuse gelagert ist, der längs der Oberseite den Querschnitt der Durchbrechungen mehr oder weniger überdeckend zwischen einer die Durchbrechungen freigebenden Öffnungsstellung und einer diese verschließenden Schließstellung verschiebbar ist.In a preferred embodiment, it is provided that for closing the openings a closure body is mounted on the housing, which along the top of the cross section of the openings more or less overlapping between an opening releasing openings and a closing position closing this is displaceable.
Insbesondere kann der Verschlußkörper an der Innenseite der Oberseite angeordnet sein.In particular, the closure body may be arranged on the inside of the upper side.
Es kann vorgesehen sein, daß der Verschlußkörper mindestens eine Durchbrechung aufweist, die in der Offenstellung des Verschlußkörpers mindestens eine Durchbrechung des Gehäuses überdeckt und in der Schließstellung seitlich gegenüber dieser bzw. diesen versetzt ist.It can be provided that the closure body has at least one opening which, in the open position of the closure body, covers at least one opening of the housing and is displaced laterally relative to the latter in the closed position.
Vorzugsweise sind an der Oberseite des Gehäuses eine Vielzahl von Durchbrechungen angeordnet. Diese können in Gruppen angeordnet sein, zwischen denen durchbrechungsfreie Bereiche verbleiben.Preferably, a plurality of openings are arranged on the upper side of the housing. These can be arranged in groups, between which break-through areas remain.
Es ist vorteilhaft, wenn die Durchbrechungen um die Drehachse des Sprüharmes in der Oberseite des Gehäuses verteilt sind, so daß bei Ansaugung von Umgebungsluft diese gleichmäßig über den Umfang verteilt angesaugt wird.It is advantageous if the apertures are distributed around the axis of rotation of the spray arm in the upper side of the housing, so that this is sucked evenly distributed over the circumference when sucking in ambient air.
Besonders vorteilhaft ist eine Ausgestaltung, bei der vorgesehen ist, daß der Verschlußkörper drehbar an der Oberseite anliegt, insbesondere kann die Drehachse des Verschlußkörpers mit der Drehachse des Sprüharmes zusammenfallen.Particularly advantageous is an embodiment in which it is provided that the closure body rotatably rests against the top, in particular, the axis of rotation of the closure body coincide with the axis of rotation of the spray arm.
Es kann dabei vorgesehen sein, daß sich der Verschlußkörper im wesentlichen über die gesamte Oberseite des Gehäuses erstreckt.It may be provided that the closure body extends substantially over the entire top of the housing.
Vorzugsweise ist der Verschlußkörper plattenförmig ausgebildet.Preferably, the closure body is plate-shaped.
Es ist günstig, wenn der Verschlußkörper durch ein an der Außenseite des Gehäuses angeordnetes Handhabungselement zwischen seiner Öffnungsstellung und seiner Schließstellung verschiebbar ist.It is advantageous if the closure body is displaceable between its open position and its closed position by a handling element arranged on the outside of the housing.
Bei einer besonders bevorzugten Ausführungsform ist vorgesehen, daß die Oberseite gerippt ist, so daß abwechselnd nach außen und nach innen offene Nuten nebeneinanderliegen, und daß zur Ausbildung einer Durchbrechung an der Oberseite eine Öffnung in der Trennwand zwischen benachbarten Nuten vorgesehen ist. Es ergibt sich somit ein Strömungsweg, der durch die benachbarten Nuten und die sie verbindende Öffnung hindurchführt. Diese Öffnungen befinden sich nur in bestimmten Bereichen der Nuten in diesen Trennwänden, so daß es Bereiche mit Durchbrechungen und Bereiche ohne Durchbrechungen in der Oberseite gibt. Die Bereiche mit Durchbrechungen können durch den Verschlußkörper mehr oder weniger abgedeckt und dadurch verschlossen werden.In a particularly preferred embodiment it is provided that the upper side is ribbed so that alternately outwardly and inwardly open grooves adjacent to each other, and that an opening in the partition between adjacent grooves is provided to form an opening at the top. This results in a flow path which passes through the adjacent grooves and the opening connecting them. These openings are located only in certain areas of the grooves in these partitions, so that there are areas with openings and areas without openings in the top. The areas with openings can be covered by the closure body more or less and thereby closed.
Günstig ist es, wenn der Sprüharm mindestens einen flügelförmigen Abschnitt aufweist, der nach Art eines Propellers oder Ventilators einen Luftstrom aus der Umgebung durch die Durchbrechungen an der Oberseite hindurch ansaugt und durch die offene Unterseite des Gehäuses wieder abgibt.It is advantageous if the spray arm has at least one wing-shaped section which, in the manner of a propeller or fan, sucks in an airflow from the environment through the openings at the top and releases it again through the open underside of the housing.
Der Sprüharm kann insbesondere zwei zu beiden Seiten der Drehachse diametral gegenüberliegende flügelförmige Abschnitte aufweisen.The spray arm may in particular have two wing-shaped sections which are diametrically opposed on both sides of the axis of rotation.
Die nachfolgende Beschreibung bevorzugter Ausführungsformen der Erfindung dient im Zusammenhang mit der Zeichnung der näheren Erläuterung. Es zeigen:
- Figur 1:
- eine Schnittansicht eines Bodenreinigungsgerätes mit nach unten offenem Gehäuse und einem darin drehbar gelagerten Sprüharm;
- Figur 2:
- eine Draufsicht auf das Bodenreinigungsgerät der Figur 1 in Richtung des Pfeiles A;
- Figur 3:
- eine Schnittansicht längs Linie 3-3 in Figur 1;
- Figur 4:
- eine Schnittansicht längs Linie 4-4 in
Figur 2; - Figur 5:
- eine vergrößerte Detailansicht des Bereiches B in Figur 1 mit nebeneinanderliegenden, voneinander getrennten Nuten in der Oberseite des Gehäuses und
- Figur 6:
- eine Ansicht
ähnlich Figur 5 mit durch Öffnungen miteinander verbundenen Nuten in der Oberseite des Gehäuses zur Ausbildung von Durchbrechungen zur Ansaugung von Umgebungsluft.
- FIG. 1:
- a sectional view of a floor cleaning device with downwardly open housing and a rotatably mounted therein spray arm;
- FIG. 2:
- a plan view of the floor cleaning device of Figure 1 in the direction of arrow A;
- FIG. 3:
- a sectional view taken along line 3-3 in Figure 1;
- FIG. 4:
- a sectional view taken along line 4-4 in Figure 2;
- FIG. 5:
- an enlarged detail view of the area B in Figure 1 with adjacent, separate grooves in the top of the housing and
- FIG. 6:
- a view similar to Figure 5 with interconnected by openings grooves in the top of the housing to form openings for the intake of ambient air.
Das in der Zeichnung dargestellte Bodenreinigungsgerät 1 umfaßt ein hauben- oder glockenförmiges, im Querschnitt kreisförmiges Gehäuse 2 mit einer umlaufenden, geschlossenen Seitenwand 3, einer offenen Unterseite 4 und einer verschlossenen, leicht nach oben gewölbten Oberseite 5. Das Gehäuse kann an seiner offenen Unterseite 4 von einem in der Zeichnung nicht dargestellten Bürstenkranz umgeben sein, der den Innenraum am unteren Ende der Seitenwand 3 zur Umgebung hin abschließt.The floor cleaning device 1 shown in the drawing comprises a hood-shaped or bell-shaped, circular in
In der Oberseite 5 ist in deren Mitte eine Lagerbüchse 6 mit einer senkrechten Lagerbohrung 7 angeordnet, in der eine Lagerwelle 8 drehbar gelagert ist. Diese ragt nach unten aus der Lagerbüchse 6 hervor und tritt dort in den Innenraum 9 des Gehäuses 2 ein, in diesem Bereich trägt die Lagerwelle 8 zwei diametral einander gegenüberliegende, radial abstehende Sprüharme 10, die an ihren freien Enden jeweils eine Auslaßdüse 11 tragen, deren Auslaßrichtung in einer parallel zur Seitenwand 3 verlaufenden Ebene schräg nach unten verläuft, und zwar bei gegenüberliegenden Sprüharmen 10 in entgegengesetzter Richtung, so daß durch einen aus der Auslaßdüse 11 austretenden Flüssigkeitsstrahl auf den Sprüharm 10 gleichgerichtete Drehmomente ausgeübt werden, die den Sprüharm 10 um die durch die Lagerwelle 8 gebildete Drehachse in Drehung versetzen. Gleichzeitig wird ein durch die Auslaßdüse 11 abgegebener Flüssigkeitsstrahl durch die offene Unterseite 4 des Gehäuses 2 gegen eine zu reinigende Fläche gerichtet, auf die das Bodenreinigungsgerät 1 aufgesetzt wird.In the top 5 a
Die Sprüharme 10 könnten theoretisch drehfest mit der Lagerwelle 8 verbunden sein, die sich dann mit den Sprüharmen 10 dreht, es ist aber auch möglich, die Lagerwelle 8 drehfest in der Lagerbohrung 7 zu halten und die Sprüharme 10 in geeigneter Weise auf der Lagerwelle 8 verdrehbar zu lagern. In beiden Fällen kann die Lagerwelle 8 zusätzlich höhenverstellbar sein, dies wird jedoch nicht näher ausgeführt.The
Die Zufuhr der Reinigungsflüssigkeit erfolgt über ein radial in die Lagerbohrung 7 einmündendes Zufuhrrohr 12, welches mit einem Ringraum 13 in Verbindung steht, der einen radial zurückgesetzten Abschnitt 14 der Lagerwelle 8 umgibt. Dieser Ringraum 13 ist durch Dichtungen 15 an beiden gegenüberliegenden Enden gegenüber der Innenwand der Lagerbohrung 7 abgedichtet und steht über eine radiale Bohrung 16 mit einer Innenbohrung 17 in Verbindung, die ihrerseits über Längsbohrungen 18 in den Sprüharmen 10 mit den Auslaßdüsen 11 verbunden ist.The supply of the cleaning liquid via a radially into the bearing bore 7 opening
Die Oberseite 5 des Gehäuses 2 ist gerippt ausgebildet und weist dadurch eine Vielzahl von parallel zueinander verlaufenden, unmittelbar nebeneinanderliegenden, wechselweise nach außen und nach innen offenen Nuten 19 auf, die parallel zu dem Zufuhrrohr 12 verlaufen und geradlinig ausgebildet sind (Figur 2). Diese Nuten 19 sind durch Trennwände 20 voneinander getrennt, die jeweils die Seitenflächen der Nuten 19 ausbilden.The
In Teilbereichen der Oberseite 5 sind in den Trennwänden 20 Öffnungen 22 vorgesehen, die jeweils eine nach außen weisende Nut 19 und die benachbarte nach innen weisende Nut 19 miteinander verbinden und somit einen Strömungsweg ausbilden, durch den Umgebungsluft in den Innenraum 9 des Gehäuses 2 gelangen kann (Figur 6). In anderen Teilbereichen 23 der Oberseite 5 fehlen derartige Öffnungen 22, in diesen Teilbereichen 23 trennen also die Trennwände 20 benachbarte Nuten 19 vollständig voneinander, so daß in diesen Teilbereichen 23 keine die Ansaugung von Umgebungsluft ermöglichenden Strömungswege vorhanden sind (Figur 5).In partial areas of the
Die Teilbereiche 21 und 23 werden jeweils durch aneinander anschließende Kreissektoren gebildet, die sich zwischen der Lagerbüchse 6 einerseits und der Seitenwand 3 andererseits erstrecken und die einander abwechseln, der Öffnungswinkel eines solchen sektorförmigen Teilbereiches beträgt bei dem dargestellten Ausführungsbeispiel 30°.The
Im Innenraum 9 ist auf einem die Lagerbüchse 6 konzentrisch umgebenden, gegebenenfalls einteilig mit der Lagerbüchse 6 ausgebildeten Lagerring 24 eine Verschlußplatte 25 verdrehbar gelagert, die sich dicht an die Innenwand der Oberseite 5 anlegt und diese praktisch vollständig überdeckt. In dieser Verschlußplatte 25 befinden sich sektorenförmige Ausschnitte 26 mit einem Öffnungswinkel, der dem Öffnungswinkel der Teilbereiche 21 und 23 entspricht, diese Ausschnitte 26 sind durch geschlossene Teilbereiche 27 voneinander getrennt, die sich ebenfalls über einen Öffnungswinkel von etwa 30° erstrecken. Es wechseln sich also in der Verschlußplatte 25 Ausschnitte 26 und geschlossene Teilbereiche 27 ab, wobei diese so angeordnet sind, daß die Ausschnitte 26 je nach Winkelstellung der Verschlußplatte 25 auf dem Lagerring 24 entweder mit den offenen Teilbereichen 21 in der Oberseite 5 zur Deckung kommen oder mit den verschlossenen Teilbereichen 23, außerdem ist jede beliebige Zwischenstellung möglich. Dadurch ist es möglich, wahlweise die offenen Teilbereiche 21 der Oberseite 5 vollständig oder teilweise zu verschließen. Um in dieser Weise die Verschlußplatte 25 in verschiedene Winkelstellungen verdrehen zu können, trägt diese an ihrer Oberseite einen Stift 28, der durch einen Umfangsschlitz 29 in der Oberseite 5 hervorsteht und als Handhabungselement dient.In the
Die Sprüharme 10 tragen flügelförmige Verbreiterungen 30, die bei Rotationen der Sprüharme nach Art eines Propellers oder Ventilators einen Luftstrom erzeugen, der in den offenen Teilbereichen 21 durch die Öffnungen 22 hindurch Umgebungsluft in den Innenraum 9 lenkt und diese Umgebungsluft dann durch die offene Unterseite 4 des Gehäuses 2 wieder abgibt. Dadurch bildet sich ein Luftpolster im Bereich des Innenraumes 9, durch den das Bodenreinigungsgerät 1 im Abstand von der zu reinigenden Fläche gehalten wird.The
Dieser Luftzustrom kann dadurch gesteuert werden, daß über den Stift 28 die Verschlußplatte 25 in verschiedene Winkelstellungen gebracht wird, in der sie die offenen Teilbereiche 21 mehr oder weniger abdeckt und dadurch die für den Luftstrom zur Verfügung stehenden Einströmquerschnitte verändert.This air flow can be controlled by the
Claims (15)
- A floor cleaning device (1) comprising a hood-shaped housing (2) which is open towards its underside (4) and closed laterally and on its top side (5), and a spray arm (10) which is rotatable in the said housing around a vertical axis, which spray arm has at least one outlet for a cleaning agent, directed towards the open underside (4) of the housing (2), at least one through-hole being disposed in the top side (5) of the housing (2), through which air is sucked in from the environment into the interior (9) of the housing (2) and which is closable completely or partially, characterised in that the through-hole or the through-holes (19, 22) are designed so as to be labyrinthine.
- A floor cleaning device according to Claim 1, characterised in that, in order to close the through-holes (19, 22), a closing body (25) is mounted on the housing (2), which is displaceable along the top side (5), more or less overlapping the cross-section of the through-holes (19, 22), between an open position freeing the through-holes and a closing position closing the said through-holes.
- A floor cleaning device according to Claim 2, characterised in that the closing body (25) is disposed on the inside of the top side (5).
- A floor cleaning device according to one of Claims 2 or 3, characterised in that the closing body (25) has at least one through-hole (26), which overlaps at least one through-hole (19, 22) of the housing (2) in the opening position of the closing body (25) and is offset laterally relative to the said through-hole or through-holes in the closing position.
- A floor cleaning device according to one of the preceding Claims, characterised in that a plurality of through-holes (19, 22) are disposed in the top side (5) of the housing (2).
- A floor cleaning device according to Claim 5, characterised in that the through-holes (19, 22) are disposed in groups, between which there remain through-hole-free regions.
- A floor cleaning device according to one of Claims 5 or 6, characterised in that the through-holes (19, 22) are distributed around the axis of rotation of the spray arm (10) in the top side (5) of the housing (2).
- A floor cleaning device according to one of Claims 2 to 7, characterised in that the closing body (25) fits rotatably against the top side (5).
- A floor cleaning device according to Claim 8, characterised in that the axis of rotation of the closing body (25) coincides with the axis of rotation of the spray arm (10).
- A floor cleaning device according to Claim 9, characterised in that the closing body (25) extends substantially over the whole top side (5) of the housing (2).
- A floor cleaning device according to one of Claims 2 to 10, characterised in that the closing body (25) is designed so as to be plate-shaped.
- A floor cleaning device according to one of Claims 2 to 11, characterised in that the closing body (25) is displaceable between its opening position and its closing position by means of a manipulation element (28) disposed on the outside of the housing (2).
- A floor cleaning device according to one of the preceding Claims, characterised in that the top side (5) is ribbed, so that grooves (19) which are alternately outwardly and inwardly open adjoin one another, and in that an opening (22) is provided in the dividing wall (20) between adjacent grooves (19) to form a through-hole in the top side (5).
- A floor cleaning device according to one of the preceding Claims, characterised in that the spray arm (10) has at least one blade-shaped portion (30).
- A floor cleaning device according to Claim 14, characterised in that the spray arm (10) has two blade-shaped portions (30) located diametrically opposite one another on both sides of the axis of rotation.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10206014 | 2002-02-14 | ||
| DE10206014A DE10206014A1 (en) | 2002-02-14 | 2002-02-14 | Floor cleaning device |
| PCT/EP2002/006248 WO2003068045A1 (en) | 2002-02-14 | 2002-06-07 | Floor cleaning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1474029A1 EP1474029A1 (en) | 2004-11-10 |
| EP1474029B1 true EP1474029B1 (en) | 2006-04-05 |
Family
ID=27674617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02758220A Expired - Lifetime EP1474029B1 (en) | 2002-02-14 | 2002-06-07 | Floor cleaning device |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1474029B1 (en) |
| AT (1) | ATE322214T1 (en) |
| AU (1) | AU2002325231A1 (en) |
| DE (2) | DE10206014A1 (en) |
| ES (1) | ES2261710T3 (en) |
| WO (1) | WO2003068045A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004063201A1 (en) * | 2004-12-23 | 2006-07-06 | Alfred Kärcher Gmbh & Co. Kg | Surface cleaning device |
| EP2255896A3 (en) | 2009-05-28 | 2013-01-16 | Producteers Aps | Cleaning apparatus |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2548432C2 (en) * | 1974-10-30 | 1986-10-02 | Bernard Eaton Salisbury Wiltshire Hart | Device for generating a rotating spray jet directed against a surface |
| GB8711306D0 (en) * | 1987-05-13 | 1987-06-17 | Harben Systems Ltd | Cleaning apparatus |
| GB2219490A (en) * | 1988-06-07 | 1989-12-13 | Btr Plc | Floor cleaning machine |
| US5711051A (en) * | 1996-04-01 | 1998-01-27 | Professional Chemicals Corporation | Hard surface cleaning appliance |
| US5970574A (en) * | 1997-04-24 | 1999-10-26 | Hydrochem Industrial Services, Inc. | Apparatus and method for cleaning surfaces by removing and containing waste |
| US6370728B1 (en) * | 2000-07-27 | 2002-04-16 | George M. Burns | Cleaning appliance |
-
2002
- 2002-02-14 DE DE10206014A patent/DE10206014A1/en not_active Withdrawn
- 2002-06-07 AT AT02758220T patent/ATE322214T1/en not_active IP Right Cessation
- 2002-06-07 ES ES02758220T patent/ES2261710T3/en not_active Expired - Lifetime
- 2002-06-07 AU AU2002325231A patent/AU2002325231A1/en not_active Abandoned
- 2002-06-07 WO PCT/EP2002/006248 patent/WO2003068045A1/en not_active Application Discontinuation
- 2002-06-07 EP EP02758220A patent/EP1474029B1/en not_active Expired - Lifetime
- 2002-06-07 DE DE50206344T patent/DE50206344D1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE50206344D1 (en) | 2006-05-18 |
| DE10206014A1 (en) | 2003-09-04 |
| EP1474029A1 (en) | 2004-11-10 |
| AU2002325231A1 (en) | 2003-09-04 |
| ATE322214T1 (en) | 2006-04-15 |
| ES2261710T3 (en) | 2006-11-16 |
| WO2003068045A1 (en) | 2003-08-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2320624C2 (en) | Switchable aerator | |
| DE2911405C2 (en) | Massage shower head with a device for the optional generation of pulsating and / or non-pulsating liquid jets | |
| EP1395358B1 (en) | Device for treating a particulate material | |
| DE2609557B2 (en) | Shower head | |
| EP0301367B1 (en) | Sprinkling device | |
| DE102005027282A1 (en) | Valve arrangement for automobile body | |
| DE3204294A1 (en) | CONTAINER AND RELATED PRESSLING | |
| DE3332103A1 (en) | AIR PURIFYING DEVICE | |
| DE3925952C1 (en) | ||
| DE2620881C3 (en) | Atomizing nozzle | |
| DE2548432A1 (en) | Self actuating rotary spray for cleaning - has rotating nozzle directing jet of fluid onto work surface with fluid producing turning force for nozzle | |
| EP1474029B1 (en) | Floor cleaning device | |
| DE3527515A1 (en) | DEVICE FOR SPRAYING SILICONE PLATES AND CHAMBER HERE | |
| DE1775185B1 (en) | Multiple check valve | |
| DE2419809B2 (en) | Washing device for rinsing through a milking facility | |
| WO2008006232A1 (en) | Cleaning roller | |
| EP1367302A2 (en) | Sealing arrangement | |
| DE1609199A1 (en) | Shower head | |
| DE19622908A1 (en) | Ventilation nozzle | |
| DE4109001C2 (en) | ||
| DE10240073A1 (en) | sealing arrangement | |
| DE10322475A1 (en) | Machine for buffering and separating pharmaceutical ampoules or flasks, e.g. for filling, comprises turntable with guide rails for flasks which form spiral terminating in circular recess | |
| DE2358993A1 (en) | ADJUSTABLE WATER JET SPRAYER | |
| DE7713579U1 (en) | SPRAY NOZZLE WITH DEVICE FOR GENERATING A PULSING SPRAY JET | |
| DE2325512A1 (en) | AEROSOL DISPENSING DEVICE FOR MULTIPLE COMPONENTS |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20040810 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
| AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: ALFRED KAERCHER GMBH & CO. KG |
|
| GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060405 Ref country code: IE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060405 |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: NV Representative=s name: ISLER & PEDRAZZINI AG |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20060413 |
|
| REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: GERMAN |
|
| REF | Corresponds to: |
Ref document number: 50206344 Country of ref document: DE Date of ref document: 20060518 Kind code of ref document: P |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060630 Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060630 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060705 Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060705 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060905 |
|
| ET | Fr: translation filed | ||
| REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D |
|
| REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2261710 Country of ref document: ES Kind code of ref document: T3 |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed |
Effective date: 20070108 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PCAR Free format text: ISLER & PEDRAZZINI AG;POSTFACH 1772;8027 ZUERICH (CH) |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060607 |
|
| BERE | Be: lapsed |
Owner name: ALFRED KARCHER G.M.B.H. & CO. KG Effective date: 20060630 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060706 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060607 Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060405 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060405 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R082 Ref document number: 50206344 Country of ref document: DE Representative=s name: HOEGER, STELLRECHT & PARTNER PATENTANWAELTE MB, DE |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20150729 Year of fee payment: 14 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20150625 Year of fee payment: 14 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 15 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 50206344 Country of ref document: DE |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170103 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 16 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160607 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 17 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20180614 Year of fee payment: 17 Ref country code: NL Payment date: 20180613 Year of fee payment: 17 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20180511 Year of fee payment: 17 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20180702 Year of fee payment: 17 Ref country code: GB Payment date: 20180403 Year of fee payment: 17 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| REG | Reference to a national code |
Ref country code: NL Ref legal event code: MM Effective date: 20190701 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20190607 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20190701 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20190607 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20190630 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20190630 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20190630 |
|
| REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20201027 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20190608 |