EP1474028B1 - Floor cleaning device - Google Patents
Floor cleaning device Download PDFInfo
- Publication number
- EP1474028B1 EP1474028B1 EP02735410A EP02735410A EP1474028B1 EP 1474028 B1 EP1474028 B1 EP 1474028B1 EP 02735410 A EP02735410 A EP 02735410A EP 02735410 A EP02735410 A EP 02735410A EP 1474028 B1 EP1474028 B1 EP 1474028B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- cleaning device
- floor cleaning
- adjustment element
- adjustment
- 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
- 238000004140 cleaning Methods 0.000 title claims abstract description 33
- 239000007921 spray Substances 0.000 claims abstract description 23
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000010408 sweeping Methods 0.000 description 1
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
- B08B3/026—Cleaning by making use of hand-held spray guns; Fluid preparations therefor
Definitions
- the invention relates to a floor cleaning device with a down towards open, hood-shaped housing in which a spray arm with at least one a cleaning medium towards the open bottom of the housing emitting nozzle about a vertical axis of rotation is freely rotatably mounted, with a height-adjustable arranged in the housing Bearing body for the spray arm, the height adjustment by a fixable on the housing in the adjustment direction of the bearing body, rotatable relative to the housing on an external thread of Bearing body screwed adjusting takes place.
- Such a floor cleaning device is for example from the EP 1 027 857 A1.
- the height adjustment is carried out by a nut-like support ring on the outside of the case is arranged and can be rotated at any time. Therefore exists in the Operation the risk that unintentionally an adjustment of the bearing body takes place and thus a change of the once set Height of the spray arm. It should be noted that the floor cleaning device due to the fast rotation of the spray arm too Vibrations can be excited, leading to a solution and adjustment can lead the support ring.
- the adjusting element relative to the housing is particularly advantageous parallel to the adjustment of the bearing body between a Locking position in which it held against rotation relative to the housing is, and a release position is displaceable, in which it is opposite the housing is freely rotatable.
- the adjustment is so not completely fixed in the axial direction on the housing, but at least to a small extent displaceable, and this shift is exploited to the locking element between the locking position and the release order.
- the adjustment in the Locking position is raised relative to the release position.
- the operation of the device is namely by the against the to be cleaned Surface directed cleaning media jet a force on the Sprüharm and exercised its bearing body, which tries to the bearing body to lift against the housing.
- This lifting force is exploited, to move the adjustment in the locked position.
- this lifting force inevitably always occurs, so that in operation, the adjustment automatically always in the locked position is moved without the user specifically must cause.
- bearing bodies and. Fall Spray arm due to its own weight back down, so that then automatically the adjustment reaches the release position, in which the user the height adjustment of the bearing body by turning make the adjustment.
- the user has to So do not worry about the non-rotatable locking of the adjustment, this occurs solely due to the reaction forces of the cleaning media jet.
- the projections and recesses arranged in such a way are that in different angular positions of the adjustment Protrusions positively engage in recesses. This makes it possible, the adjustment in different angular positions set, that is, the adjustment can be sensitive be twisted and then in the achieved angular position in each Trap established.
- the projections and recesses arranged on a circle concentric with the axis of rotation of the adjusting element runs.
- the adjusting element is threaded screwed with a large pitch, so that, for example, the Sweeping the entire height adjustment range only one or two Revolutions of the adjustment are necessary.
- the adjusting element at the end facing away from the spray arm on the Bearing body is screwed and surrounds this end hood-shaped.
- the adjustment thus forms a hood-shaped operating handle and can be in this way to adjust the altitude of the bearing body very easy to twist.
- the adjusting element may be concentric with its axis of rotation Wear ring flange, which engages under an annular flange on the housing, which in turn is a stop against further lifting forms the adjustment. It can be provided that the two Ring flanges Projections and recesses for non-rotatable connection wear of adjusting element and housing. Take over these ring flanges thus a double function, once they limit a shift the adjusting element, the bearing body and the spray arm to the top, and on the other hand they form the non-rotatable connection between adjusting element and housing, when the adjusting element shifted upwards by the reaction forces of the cleaning medium becomes.
- the housing On the housing may continue to be provided a stop, a Displacement of the adjusting element in the direction of the release position limited.
- the adjustment is only in small Circumference in the axial direction displaceable between the locking position and the release order, already a shift by a few Millimeter is enough here to the adjustment between these move both extreme positions and thus optionally the Release adjustment against rotation or against rotation lock.
- This axial displacement of the adjusting element is in usually be much smaller than the height adjustment, the the bearing body learns by turning the adjusting element.
- the floor cleaning device 1 shown in the drawing comprises a hood-shaped, in cross-section circular housing 2 with a circumferential side wall 3, an open bottom 4 and a closed Top 5.
- a vertical Bearing bush 6 arranged with a continuous bearing bore 7, in which a bearing shaft 8 is mounted longitudinally displaceable.
- This bearing shaft 8 carries at its down from the bearing bush. 6 protruding and entering the interior 9 of the housing 2 End radially projecting spray arms 10 which terminate in nozzles 11.
- These nozzles 11 produce an obliquely downward beam a cleaning medium, the exit from the nozzle 11 through Reaction forces a torque on the spray arm 10 exerts and this set in rotation.
- the spray arm 10 is rotatable the bearing shaft 8 mounted so that upon rotation of the spray arm 10 this rotates on its bearing on the bearing shaft 8, while the bearing shaft 8 is rotatably received in the bearing bore 7 and only displaceable in the axial direction.
- the bearing shaft protrudes with its end facing away from the spray arm 10 19th up out of the bushing 6 and carries there a coarse thread 20 with very high gradient.
- a coarse thread 20 On this coarse thread 20 is a Screwed threaded sleeve 21, which is closed at its upper end 22 is and integrally with a hood-shaped gripping surface 23rd connected is.
- This gripping surface 23 ends at its lower edge 24 in FIG a radially outwardly projecting annular flange 25, which is the axis of rotation the threaded sleeve concentrically surrounds and that at its top distributed over the circumference spherical cap-shaped projections 26th wearing.
- the annular flange 25 with the projections 26 is a this annular flange 25 covering annular flange 27 opposite to the at his the annular flange 25 side facing ball recesses 28 for Receiving the projections 26 of the annular flange 25, this Ring flange 27 is held on a housing part 29, which is the bearing bush 6 concentrically surrounds and fixed to the top 5 of the housing 2 is connected.
- This rotation causes the bearing shaft 8 in the axial Direction is adjusted, that is, thereby the height of the Adjust the low spray 10 above the lower edge of the housing 2.
- the Rotation of the threaded sleeve 21 is easily possible because the threaded sleeve 21 is easy to grip by the hood-shaped gripping surface 23, as well it is readily possible for the user to twist to push the threaded sleeve 21 down to ensure that in the rotation of the threaded sleeve 21, the projections 26 always off the recesses 28 of the annular flange 27 emerge. Then also ensures that the threaded sleeve 21 is always freely rotatable.
- the displacement of the two annular flanges 25 and 27 against each other is low, it is usually only a few Millimeters, while the height adjustment of the bearing shaft is much larger is, by turning the threaded sleeve 21 on the bearing shaft 8 is generated.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
- Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
- Pinball Game Machines (AREA)
Abstract
Description
Die Erfindung betrifft ein Bodenreinigungsgerät mit einem nach unten hin offenen, haubenförmigen Gehäuse, in dem ein Sprüharm mit mindestens einer ein Reinigungsmedium in Richtung auf die offene Unterseite des Gehäuses abgebenden Düse um eine senkrechte Drehachse frei drehbar gelagert ist, mit einem im Gehäuse höhenverstellbar angeordneten Lagerkörper für den Sprüharm, dessen Höhenverstellung durch ein am Gehäuse in Verstellrichtung des Lagerkörpers festlegbares, gegenüber dem Gehäuse verdrehbar auf ein Außengewinde des Lagerkörpers aufschraubbares Verstellelement erfolgt.The invention relates to a floor cleaning device with a down towards open, hood-shaped housing in which a spray arm with at least one a cleaning medium towards the open bottom of the housing emitting nozzle about a vertical axis of rotation is freely rotatably mounted, with a height-adjustable arranged in the housing Bearing body for the spray arm, the height adjustment by a fixable on the housing in the adjustment direction of the bearing body, rotatable relative to the housing on an external thread of Bearing body screwed adjusting takes place.
Ein solches Bodenreinigungsgerät ist beispielsweise aus der EP 1 027 857 A1 bekannt. Die Höhenverstellung erfolgt dabei durch einen mutterartigen Stützring, der an der Außenseite des Gehäuses angeordnet ist und jederzeit verdreht werden kann. Daher besteht im Betrieb die Gefahr, daß hier unbeabsichtigt eine Verstellung des Lagerkörpers erfolgt und damit eine Veränderung der einmal eingestellten Höhe des Sprüharmes. Dabei ist zu berücksichtigen, daß das Bodenreinigungsgerät aufgrund der schnellen Drehung des Sprüharmes zu Schwingungen angeregt werden kann, die zu einer Lösung und Verstellung des Stützringes führen können.Such a floor cleaning device is for example from the EP 1 027 857 A1. The height adjustment is carried out by a nut-like support ring on the outside of the case is arranged and can be rotated at any time. Therefore exists in the Operation the risk that unintentionally an adjustment of the bearing body takes place and thus a change of the once set Height of the spray arm. It should be noted that the floor cleaning device due to the fast rotation of the spray arm too Vibrations can be excited, leading to a solution and adjustment can lead the support ring.
Es ist Aufgabe der Erfindung, ein gattungsgemäßes Bodenreinigungsgerät so auszugestalten, daß im Betrieb eine unbeabsichtigte Höhenverstellung nicht eintreten kann. It is an object of the invention to provide a generic floor cleaning device in such a way that during operation an unintentional height adjustment can not occur.
Diese Aufgabe wird bei einem Bodenreinigungsgerät der eingangs beschriebenen Art erfindungsgemäß dadurch gelöst, daß das Verstellelement durch eine lösbare Verbindung drehfest mit dem Gehäuse verbindbar ist. Diese drehfeste Verbindung verhindert ein unbeabsichtigtes Verdrehen des Verstellelementes und damit eine unbeabsichtigte Höhenverstellung.This object is achieved in a floor cleaning device of the type described above Art according to the invention solved in that the adjusting element by a detachable connection rotatably connected to the housing is. This non-rotatable connection prevents unintentional Turning the adjusting element and thus an unintentional Height adjustment.
Besonders vorteilhaft ist es, wenn das Verstellelement relativ zum Gehäuse parallel zur Verstellrichtung des Lagerkörpers zwischen einer Verriegelungsstellung, in der es gegenüber dem Gehäuse drehfest gehalten ist, und einer Freigabestellung verschiebbar ist, in der es gegenüber dem Gehäuse frei verdrehbar ist. Das Verstellelement ist also nicht vollständig in axialer Richtung am Gehäuse festgelegt, sondern zumindest in geringem Umfange verschiebbar, und diese Verschiebung wird ausgenutzt, um das Verriegelungselement zwischen der Verriegelungsstellung und der Freigabestellung zu verschieben.It when the adjusting element relative to the housing is particularly advantageous parallel to the adjustment of the bearing body between a Locking position in which it held against rotation relative to the housing is, and a release position is displaceable, in which it is opposite the housing is freely rotatable. The adjustment is so not completely fixed in the axial direction on the housing, but at least to a small extent displaceable, and this shift is exploited to the locking element between the locking position and the release order.
Dabei ist es besonders vorteilhaft, wenn das Verstellelement in der Verriegelungsstellung gegenüber der Freigabestellung angehoben ist. Im Betrieb des Gerätes wird nämlich durch den gegen die zu reinigende Fläche gerichteten Reinigungsmedienstrahl eine Kraft auf den Sprüharm und seinen Lagerkörper ausgeübt, die versucht, den Lagerkörper gegenüber dem Gehäuse anzuheben. Diese Hubkraft wird ausgenutzt, um das Verstellelement in die Verriegelungsstellung zu verschieben. Im Betrieb tritt diese Hubkraft zwangsläufig immer auf, so daß im Betrieb das Verstellelement automatisch immer in die Verriegelungsstellung verschoben wird, ohne daß der Benutzer dies speziell veranlassen muß. Wird der Betrieb beendet, fallen Lagerkörper und Sprüharm aufgrund des Eigengewichtes wieder nach unten, so daß dann automatisch das Verstellelement in die Freigabestellung gelangt, in der der Benutzer die Höhenverstellung des Lagerkörpers durch Verdrehen des Verstellelementes vornehmen kann. Der Benutzer muß sich also um die drehfeste Verriegelung des Verstellelementes nicht kümmern, diese erfolgt allein aufgrund der Reaktionskräfte des Reinigungsmedienstrahles.It is particularly advantageous if the adjustment in the Locking position is raised relative to the release position. In the operation of the device is namely by the against the to be cleaned Surface directed cleaning media jet a force on the Sprüharm and exercised its bearing body, which tries to the bearing body to lift against the housing. This lifting force is exploited, to move the adjustment in the locked position. In operation, this lifting force inevitably always occurs, so that in operation, the adjustment automatically always in the locked position is moved without the user specifically must cause. When the operation is terminated, bearing bodies and. Fall Spray arm due to its own weight back down, so that then automatically the adjustment reaches the release position, in which the user the height adjustment of the bearing body by turning make the adjustment. The user has to So do not worry about the non-rotatable locking of the adjustment, this occurs solely due to the reaction forces of the cleaning media jet.
Insbesondere kann vorgesehen sein, daß in der Verriegelungsstellung Vor- und Rücksprünge am Verstellelement beziehungsweise dem Gehäuse formschlüssig ineinander greifen.In particular, it can be provided that in the locked position Projections and recesses on the adjusting element or the housing interlock positively.
Dabei ist es günstig, wenn die Vorsprünge und Rücksprünge derart angeordnet sind, daß in verschiedenen Winkelstellungen des Verstellelementes Vorsprünge formschlüssig in Rücksprünge eingreifen können. Dadurch ist es möglich, das Verstellelement in unterschiedlichen Winkelstellungen festzulegen, das heißt das Verstellelement kann feinfühlig verdreht werden und wird dann in der erreichten Winkelstellung in jedem Falle festgelegt.It is advantageous if the projections and recesses arranged in such a way are that in different angular positions of the adjustment Protrusions positively engage in recesses. This makes it possible, the adjustment in different angular positions set, that is, the adjustment can be sensitive be twisted and then in the achieved angular position in each Trap established.
Insbesondere kann vorgesehen sein, daß die Vorsprünge und Rücksprünge auf einem Kreis angeordnet sind, der konzentrisch zur Drehachse des Verstellelementes verläuft.In particular, it can be provided that the projections and recesses arranged on a circle concentric with the axis of rotation of the adjusting element runs.
Besonders vorteilhaft ist es, wenn das Verstellelement auf ein Gewinde mit großer Steigung aufgeschraubt ist, so daß beispielsweise zum Überstreichen des gesamten Höheneinstellbereiches nur eine oder zwei Umdrehungen des Verstellelementes notwendig sind. It is particularly advantageous if the adjusting element is threaded screwed with a large pitch, so that, for example, the Sweeping the entire height adjustment range only one or two Revolutions of the adjustment are necessary.
Bei einer besonders bevorzugten Ausführungsform ist vorgesehen, daß das Verstellelement an dem dem Sprüharm abgewandten Ende auf den Lagerkörper aufgeschraubt ist und dieses Ende haubenförmig umgibt. Das Verstellelement bildet somit einen haubenförmigen Bedienungsgriff und läßt sich auf diese Weise zur Verstellung der Höhenlage des Lagerkörpers sehr einfach verdrehen.In a particularly preferred embodiment it is provided that the adjusting element at the end facing away from the spray arm on the Bearing body is screwed and surrounds this end hood-shaped. The adjustment thus forms a hood-shaped operating handle and can be in this way to adjust the altitude of the bearing body very easy to twist.
Das Verstellelement kann einen konzentrisch zu seiner Drehachse verlaufenden Ringflansch tragen, der einen Ringflansch am Gehäuse untergreift, der seinerseits einen Anschlag gegen ein weiteres Anheben des Verstellelementes bildet. Dabei kann vorgesehen sein, daß die beiden Ringflansche Vor- und Rücksprünge zur drehfesten Verbindung von Verstellelement und Gehäuse tragen. Diese Ringflansche übernehmen somit eine Doppelfunktion, einmal begrenzen sie eine Verschiebung des Verstellelementes, des Lagerkörpers und des Sprüharmes nach oben, und zum anderen bilden sie die drehfeste Verbindung zwischen Verstellelement und Gehäuse aus, wenn das Verstellelement durch die Reaktionskräfte des Reinigungsmediums nach oben verschoben wird.The adjusting element may be concentric with its axis of rotation Wear ring flange, which engages under an annular flange on the housing, which in turn is a stop against further lifting forms the adjustment. It can be provided that the two Ring flanges Projections and recesses for non-rotatable connection wear of adjusting element and housing. Take over these ring flanges thus a double function, once they limit a shift the adjusting element, the bearing body and the spray arm to the top, and on the other hand they form the non-rotatable connection between adjusting element and housing, when the adjusting element shifted upwards by the reaction forces of the cleaning medium becomes.
Am Gehäuse kann weiterhin ein Anschlag vorgesehen sein, der eine Verschiebung des Verstellelementes in Richtung auf die Freigabestellung begrenzt. Auf diese Weise ist das Verstellelement nur in geringem Umfang in axialer Richtung verschiebbar zwischen der Verriegelungsstellung und der Freigabestellung, bereits eine Verschiebung um wenige Millimeter reicht hier aus, um das Verstellelement zwischen diesen beiden Extrempositionen zu verschieben und dadurch wahlweise das Verstellelement gegen Drehung freizugeben oder gegen Drehung zu verriegeln. Dieses axiale Verschiebung des Verstellelementes wird in der Regel wesentlich kleiner sein können als die Höhenverstellung, die der Lagerkörper durch Verdrehen des Verstellelementes erfährt.On the housing may continue to be provided a stop, a Displacement of the adjusting element in the direction of the release position limited. In this way, the adjustment is only in small Circumference in the axial direction displaceable between the locking position and the release order, already a shift by a few Millimeter is enough here to the adjustment between these move both extreme positions and thus optionally the Release adjustment against rotation or against rotation lock. This axial displacement of the adjusting element is in usually be much smaller than the height adjustment, the the bearing body learns by turning the adjusting element.
Die nachfolgende Beschreibung bevorzugter Ausführungsformen der Erfindung dient im Zusammenhang mit der Zeichnung der näheren Erläuterung. Es zeigen:
- Figur 1:
- Eine Schnittansicht durch ein Bodenreinigungsgerät mit einer Höhenverstellung des Sprüharmes mit einem Verstellelement in Freigabestellung und
- Figur 2:
- Eine Schnittansicht des Bodenreinigungsgerätes der Figur 1 mit einer um 90° gedrehten Schnittebene im Betrieb des Bodenreinigungsgerätes mit dem Verstellelement in Verriegelungsstellung.
- FIG. 1:
- A sectional view through a floor cleaning device with a height adjustment of the spray arm with an adjustment in the release position and
- FIG. 2:
- A sectional view of the floor cleaning device of Figure 1 with a rotated by 90 ° cutting plane in the operation of the floor cleaning device with the adjustment in the locked position.
Das in der Zeichnung dargestellte Bodenreinigungsgerät 1 umfaßt ein
haubenförmiges, im Querschnitt kreisförmiges Gehäuse 2 mit einer
umlaufenden Seitenwand 3, einer offenen Unterseite 4 und einer geschlossenen
Oberseite 5. In der Mitte der Oberseite 5 ist eine senkrechte
Lagerbuchse 6 mit einer durchgehenden Lagerbohrung 7 angeordnet,
in welcher eine Lagerwelle 8 längsverschieblich gelagert ist.
Diese Lagerwelle 8 trägt an ihrem nach unten aus der Lagerbuchse 6
hervorstehenden und in den Innenraum 9 des Gehäuses 2 eintretenden
Ende radial abstehende Sprüharme 10, die in Düsen 11 enden.
Diese Düsen 11 erzeugen einen schräg nach unten gerichteten Strahl
eines Reinigungsmediums, das beim Austritt aus den Düsen 11 durch
Reaktionskräfte ein Drehmoment auf den Sprüharm 10 ausübt und
diesen dadurch in Drehung versetzt. Der Sprüharm 10 ist drehbar auf
der Lagerwelle 8 gelagert, so daß bei einer Verdrehung des Sprüharmes
10 dieser auf seiner Lagerung an der Lagerwelle 8 rotiert, während
die Lagerwelle 8 in der Lagerbohrung 7 drehfest aufgenommen ist
und nur in axialer Richtung verschiebbar.The floor cleaning device 1 shown in the drawing comprises a
hood-shaped, in cross-section circular housing 2 with a
Die Zufuhr des Reinigungsmediums erfolgt über ein radial in die Lagerbuchse
6 einmündendes Zufuhrrohr 12, einen die Lagerwelle 8 in einem
zurückgesetzten Abschnitt 13 umgebenden Ringraum 14, der an
beiden Enden durch Dichtungen 15 gegenüber der Lagerbuchse 6 abgedichtet
ist, eine radiale Bohrung 16 und eine weiterführende zentrale
Bohrung 17 in der Lagerwelle 8 und schließlich durch einen Strömungskanal
18 im Sprüharm 10.The supply of the cleaning medium via a radially into the bearing bush
6
Die Lagerwelle ragt mit ihrem dem Sprüharm 10 abgewandten Ende 19
nach oben aus der Lagerbuchse 6 heraus und trägt dort ein Grobgewinde
20 mit sehr hoher Steigung. Auf dieses Grobgewinde 20 ist eine
Gewindehülse 21 aufgeschraubt, die an ihrem oberen Ende 22 verschlossen
ist und einstückig mit einer haubenförmigen Grifffläche 23
verbunden ist. Diese Grifffläche 23 endet an ihrem unteren Rand 24 in
einem radial nach außen abstehenden Ringflansch 25, der die Drehachse
der Gewindehülse konzentrisch umgibt und der an seiner Oberseite
über den Umfang verteilt kugelkalottenförmige Vorsprünge 26
trägt. The bearing shaft protrudes with its end facing away from the spray arm 10 19th
up out of the bushing 6 and carries there a
Der Ringflansch 25 mit den Vorsprüngen 26 steht einem diesen Ringflansch
25 überdeckenden Ringflansch 27 gegenüber, der an seiner
dem Ringflansch 25 zugewandten Seite kugellge Ausnehmungen 28 zur
Aufnahme der Vorsprünge 26 des Ringflansches 25 aufweist, dieser
Ringflansch 27 ist an einem Gehäuseteil 29 gehalten, welches die Lagerbuchse
6 konzentrisch umgibt und fest mit der Oberseite 5 des Gehäuses
2 verbunden ist.The
Vor Inbetriebnahme des beschriebenen Bodenreinigungsgerätes 1 wird
die Baueinheit aus Sprüharmen 10, Lagerwelle 8 und darauf aufgeschraubter
Gewindehülse 21 durch das Gewicht der Baueinheit nach
unten gezogen, diese Abwärtsbewegung wird dadurch begrenzt, daß
die Gewindehülse 21 mit ihrem unteren Rand an dem oberen Rand der
Lagerbuchse 6 anschlägt (Figur 1). In dieser Position, die nachstehend
als Freigabestellung bezeichnet wird, sind die beiden Ringflansche 25
und 27 so weit voneinander entfernt, daß die Vorsprünge 26 aus den
Ausnehmungen 28 austreten, damit kann die Gewindehülse 21 gegenüber
dem Ringflansch 27 und damit auch gegenüber dem Gehäuse 2
frei verdreht werden, wie dies durch den Doppelpfeil in Figur 1 angedeutet
ist. Diese Verdrehung führt dazu, daß die Lagerwelle 8 in axialer
Richtung verstellt wird, das heißt dadurch läßt sich die Höhe des
Sprüharmes 10 über dem unteren Rand des Gehäuses 2 einstellen. Die
Verdrehung der Gewindehülse 21 ist einfach möglich, da die Gewindehülse
21 durch die haubenförmige Grifffläche 23 gut zu greifen ist, außerdem
ist es für den Benutzer ohne weiteres möglich, beim Verdrehen
die Gewindehülse 21 nach unten zu drücken, um sicherzustellen, daß
bei der Verdrehung der Gewindehülse 21 die Vorsprünge 26 immer aus
den Ausnehmungen 28 des Ringflansches 27 heraustreten. Dann ist
auch sichergestellt, daß die Gewindehülse 21 immer frei verdrehbar ist.Before putting the described floor cleaning device 1 is
the assembly of spray arms 10, bearing
In Betrieb werden durch die Reaktionskräfte des Reinigungsmedienstrahles
einmal die Sprüharme 10 in Drehung versetzt und zum anderen
wird die Lagerwelle 8 nach oben verschoben. Diese Verschiebung
ist jedoch nur in geringem Umfange möglich, so lange nämlich, bis sich
die beiden Ringflansche 25 und 27 soweit angenähert haben, daß die
Vorsprünge 26 in die Ausnehmungen 28 eintreten. Dies führt zu einer
formschlüssigen Verbindung zwischen Gewindehülse 21 und Ringflansch
27, diese beiden Teile sind dadurch nicht mehr gegeneinander
verdrehbar, das heißt die Gewindehülse 21 ist gegen eine unbeabsichtigte
Verdrehung gesichert. Außerdem wird eine weitere Verschiebung
der Lagerwelle 8 nach oben verhindert, so daß die Höhe der Sprüharme
10 definiert ist. Die Verschiebung der beiden Ringflansche 25 und
27 gegeneinander ist nur gering, sie beträgt in der Regel nur wenige
Millimeter, während die Höhenverstellung der Lagerwelle sehr viel größer
ist, die durch Verdrehung der Gewindehülse 21 auf der Lagerwelle
8 erzeugt wird.In operation by the reaction forces of the cleaning media jet
once the spray arms 10 is rotated and the other
the
Bei Betriebsende hören die Reaktionskräfte des Reinigungsmedienstrahles
auf, und dies führt dazu, daß die Baueinheit aus Lagerwelle 8 ,
Sprüharmen 10 und Gewindehülse 21 unter der Wirkung des Eigengewichtes
wieder in die Freigabestellung absinkt. In dieser kann die
Höhenverstellung ohne weiteres in der beschriebenen Weise vorgenommen
werden.At the end of the operation, the reaction forces of the cleaning media jet are heard
on, and this causes the assembly of
Claims (11)
- A floor cleaning device (1), having a hood-shaped housing (2) which is open on the underside and in which there is mounted, so as to be freely rotatable about a vertical rotational axis, a spray arm (10) having at least one nozzle (11) delivering a cleaning medium towards the open underside (4) of the housing, and having, for the spray arm (10), a bearing body (8) which is height-adjustably arranged in the housing (2) and the height of which is adjusted by means of an adjustment element (21, 23) that can be locked on the housing (2) in the direction of adjustment of the bearing body (8) and that can be screwed onto a thread of the bearing body (8) in a rotatable manner relative to the housing (2), characterised in that , by means of a detachable connection (26, 28), the adjustment element (21, 23) can be connected to the housing (2, 29) in such a way as to be secured against rotation.
- A floor cleaning device according to claim 1, characterised in that the adjustment element (21, 23) is movable relative to the housing (2, 29) parallel to the direction of adjustment of the bearing body (8) between a lock position, in which it is held secured against rotation relative to the housing (2, 29), and a release position, in which the said element is freely rotatable relative to the housing.
- A floor cleaning device according to claim 2, characterised in that, in the lock position, the adjustment element (21, 23) is higher than in the release position.
- A floor cleaning device according to one of claims 2 or 3, characterised in that, in the lock position, projections and recesses (26, 28) on the adjustment element (21, 23) and on the housing (2, 29) positively interlock.
- A floor cleaning device according to claim 4, characterised in that the projections (26) and recesses (28) are arranged in such a way that, when the adjustment element (21, 23) is positioned at different angles, projections (26) can engage in recesses (28) in a positively locking manner.
- A floor cleaning device according to claim 5, characterised in that projections (26) and recesses (28) are arranged in a circle which extends concentrically with the rotational axis of the adjustment element (21, 23).
- A floor cleaning device according to any one of the preceding claims, characterised in that the adjustment element (21, 23) is screwed onto a thread (20) having a large pitch.
- A floor cleaning device according to any one of the preceding claims, characterised in that the adjustment element (21, 23) is screwed onto the bearing body (8) at the end (19) further from the spray arm (10) and surrounds the said end (19) in a hood-like manner.
- A floor cleaning device according to any one of the preceding claims, characterised in that the adjustment element (21, 23) has an annular flange (25) which extends concentrically with the rotational axis of the said element and which engages under an annular flange (27) that is arranged on the housing (2, 29) and that in turn forms a stop to prevent further lifting of the adjustment element (21, 23).
- A floor cleaning device according to claim 9, characterised in that the two annular flanges (25, 27) have projections and recesses (26, 28) for connecting the adjustment element (21, 23) and the housing (2, 29) in such a way that the said element is secured against rotation.
- A floor cleaning device according to any one of claims 2 to 10, characterised in that, on the housing (2), there is provided a stop (6) which limits movement of the adjustment element (21, 23) towards the release position.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10206013A DE10206013C1 (en) | 2002-02-14 | 2002-02-14 | Floor-cleaning device comprises a height-adjustable bearing body for a spray arm which is adjusted using an adjusting element rotationally fixed to the housing by a removable connection |
| DE10206013 | 2002-02-14 | ||
| PCT/EP2002/006247 WO2003068044A1 (en) | 2002-02-14 | 2002-06-07 | Floor cleaning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1474028A1 EP1474028A1 (en) | 2004-11-10 |
| EP1474028B1 true EP1474028B1 (en) | 2005-10-19 |
Family
ID=7713805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02735410A Expired - Lifetime EP1474028B1 (en) | 2002-02-14 | 2002-06-07 | Floor cleaning device |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1474028B1 (en) |
| AT (1) | ATE306842T1 (en) |
| AU (1) | AU2002310759A1 (en) |
| DE (2) | DE10206013C1 (en) |
| WO (1) | WO2003068044A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108867491A (en) * | 2018-06-27 | 2018-11-23 | 芜湖凯奥尔环保科技有限公司 | A kind of multi-functional environment-protection vehicle |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004013057B3 (en) * | 2004-03-05 | 2005-07-14 | Alfred Kärcher Gmbh & Co. Kg | Surface cleansing head, comprises a hood shaped housing with a liquid delivery opening, a spray arm, and a nozzle |
| DE102007029245A1 (en) | 2007-06-13 | 2008-12-18 | Alfred Kärcher Gmbh & Co. Kg | Surface cleaning head |
| DE102008011506A1 (en) | 2008-02-22 | 2009-08-27 | Alfred Kärcher Gmbh & Co. Kg | Surface cleaning head |
| DE102019133980A1 (en) * | 2019-12-11 | 2021-06-17 | Alfred Kärcher SE & Co. KG | CLEANING HEAD |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3829019A (en) * | 1972-02-02 | 1974-08-13 | Chaska Chem Co Inc | Spinner assembly |
| FR2750898B1 (en) * | 1996-07-11 | 1998-09-25 | Cogema | ULTRA HIGH PRESSURE SCRAPER DEVICE AND SURFACE TREATMENT SYSTEM USING THE SAME |
| EP1027858A1 (en) * | 1999-02-10 | 2000-08-16 | Alto Danmark A/S | Cleaning tool |
| EP1027857A1 (en) * | 1999-02-10 | 2000-08-16 | Alto Danmark A/S | Cleaning tool |
-
2002
- 2002-02-14 DE DE10206013A patent/DE10206013C1/en not_active Expired - Fee Related
- 2002-06-07 AU AU2002310759A patent/AU2002310759A1/en not_active Abandoned
- 2002-06-07 WO PCT/EP2002/006247 patent/WO2003068044A1/en not_active Application Discontinuation
- 2002-06-07 EP EP02735410A patent/EP1474028B1/en not_active Expired - Lifetime
- 2002-06-07 DE DE50204636T patent/DE50204636D1/en not_active Expired - Lifetime
- 2002-06-07 AT AT02735410T patent/ATE306842T1/en active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108867491A (en) * | 2018-06-27 | 2018-11-23 | 芜湖凯奥尔环保科技有限公司 | A kind of multi-functional environment-protection vehicle |
| CN108867491B (en) * | 2018-06-27 | 2020-06-02 | 芜湖凯奥尔环保科技有限公司 | Multifunctional environment-friendly vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2002310759A1 (en) | 2003-09-04 |
| DE10206013C1 (en) | 2003-05-22 |
| DE50204636D1 (en) | 2005-11-24 |
| WO2003068044A1 (en) | 2003-08-21 |
| ATE306842T1 (en) | 2005-11-15 |
| EP1474028A1 (en) | 2004-11-10 |
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