EP0686371A1 - Floor sweeper with at least one removable side brush - Google Patents

Floor sweeper with at least one removable side brush Download PDF

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Publication number
EP0686371A1
EP0686371A1 EP95108852A EP95108852A EP0686371A1 EP 0686371 A1 EP0686371 A1 EP 0686371A1 EP 95108852 A EP95108852 A EP 95108852A EP 95108852 A EP95108852 A EP 95108852A EP 0686371 A1 EP0686371 A1 EP 0686371A1
Authority
EP
European Patent Office
Prior art keywords
brush
sweeper
feed
drive pinion
sweeper according
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.)
Granted
Application number
EP95108852A
Other languages
German (de)
French (fr)
Other versions
EP0686371B1 (en
Inventor
Ludwig Kränzle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kranzle Josef
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Kranzle Josef
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Filing date
Publication date
Application filed by Kranzle Josef filed Critical Kranzle Josef
Publication of EP0686371A1 publication Critical patent/EP0686371A1/en
Application granted granted Critical
Publication of EP0686371B1 publication Critical patent/EP0686371B1/en
Anticipated expiration legal-status Critical
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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
    • E01H1/02—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt
    • E01H1/05—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt with driven brushes
    • E01H1/053—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt with driven brushes having vertical axes
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/22—Floor-sweeping machines, hand-driven
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4036—Parts or details of the surface treating tools
    • A47L11/4038—Disk shaped surface treating tools
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4036—Parts or details of the surface treating tools
    • A47L11/4041—Roll shaped surface treating tools
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4052—Movement of the tools or the like perpendicular to the cleaning surface
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4063—Driving means; Transmission means therefor
    • A47L11/4069—Driving or transmission means for the cleaning tools
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4091—Storing or parking devices, arrangements therefor; Means allowing transport of the machine when it is not being used

Definitions

  • the invention relates to a sweeper with at least one removable feed brush, which is mounted on a front corner region of a housing on a cantilever arm for feeding sweepings to a sweeping roller.
  • Sweepers of this type are used in particular for cleaning larger courtyard or hall areas, the sweepings being picked up by means of one or more sweeping rollers and being conveyed into a collecting basket. Work performance of several hundred square meters is possible in a force-saving manner, since the sweeper is easily pushed over the surface to be swept with an approximately 80 cm wide sweeper roller.
  • one or two rotating feed brushes are provided at the front corner area of the sweeper housing, which surrounds the top of the sweeping roller and stores the grass catcher so that the dirt in the baseboard area or in the corner area along walls or curbs is also included is picked up because these rotating side brushes convey the dirt towards the center and thus towards the roller brush.
  • DE-GM 94 03 678 of the applicant has proposed that a removable end cap is mounted on the cantilever arm provided on the front corner region of the housing.
  • the feed brush can be easily removed, which considerably reduces the cantilever length of the cantilever arm and thus the sweeper in can be packed in a transport box with a smaller footprint.
  • the object of the invention is to create a sweeper which enables a rapid changeover between an operating position and a non-operating position of the feed brush in a particularly simple and safe manner.
  • the drive pinion is mounted on the axle bearing housing for the brush axis of the feed brush, so that no additional effort is required from the manufacturing effort.
  • the preferred design of the drive pinion with a greater axial length than the overall height of the gear in connection with the height-adjustable brush axis ensures that even with a larger height adjustment stroke the feed brush always has constant engagement conditions and thus a safe drive, since the drive belt and the drive pinion itself with the feed brush removed, remains as a structural unit in the boom arm of the sweeper.
  • a sweeper 1 which has at least one sweeping roller 2, which picks up the sweeping material lying on the floor and conveys it into a grass catcher 3.
  • the grass catcher is here by means of a grass catcher frame 3a mounted on a housing 4 at least partially surrounding the sweeping roller 2.
  • a handle bracket 5 which extends obliquely upward at approximately 30 ° for pushing the sweeper.
  • two lateral pivot bearings 6 are provided, which serve to adjust the inclination of the handle 5.
  • one or two feed brushes 7 are provided, which combine the sweepings in the lateral direction and feed the sweeping roller 2.
  • the sweeping roller (s) is / are supported and driven at the same time via wheels 8 arranged on the side of the housing 4.
  • the front corner area with the feed brush 7 is shown enlarged in longitudinal section, the feed brush 7 being supported by a cantilever arm 9 projecting from the housing 4.
  • the feed brush 7 has an upright brush axis 10 which is mounted displaceably in the vertical direction. This is done here by means of an axle bearing housing 13 in which the brush axis 10 is fitted with a clearance fit and can thus be moved in the upright direction.
  • a compression spring 14 arranged within the axle bearing housing 13, the brush body of the feed brush 7 is completely or at least largely lifted off the bottom surface in the inoperative position. In the deeper, dashed working position, however, the brush axis 10 protrudes downward from the plate-shaped axle bearing housing 13 so that the feed brush 7 rests almost completely on the floor surface with a certain pressure.
  • the feed brush 7 has a gearwheel 11 above the brush body, which meshes with a drive pinion 11a mounted in the extension arm 9 in order to drive the feed brush 7 by means of a belt 12 derived from the drive of the sweeping roller 2.
  • the gear 11 is attached to the brush axis 10 in the same axis as the feed brush 7, the gear 11 also being integral with the holder body for the Bristles of the feed brush 7 can be formed.
  • the drive pinion 11a which meshes with the gear 11 in the working position shown here is mounted on the axle bearing housing 13 for the brush axis 10 of the feed brush 7 by means of an axle bolt 11c.
  • the axle bearing housing 13 can preferably be designed as an injection molded part and can be detachably fastened to the underside of the cantilever arm 9 by means of a plurality of bushings 13a (cf. also FIG. 3).
  • an axially identical pulley 11b is preferably provided in one piece with it, as an injection molded part, around which the belt 12 guided by the drive of the sweeping roller 2 is placed and thus preassembled in the production plant.
  • This belt 12 is driven by a drive pulley 12a, which in turn is driven by a drive wheel 8a interacting with one of the side wheels 8 (cf. also FIG. 3).
  • a different type of drive (such as a belt or chain drive) can be selected for the drive pinion 11a.
  • a locking device 15 In order to fix the feed brush 7 in one of the two positions, namely the higher relief position or in the lower working position, a locking device 15, indicated only schematically by hatching, is provided in FIG. 2, which fixes and clamps the brush axis 10 in the respective position.
  • the locking device 15 is formed by a lever or bracket encompassing the brush axis 10 in a U-shape, which is biased by a spring. As a result, the brush axis 10 is fixed in its height position.
  • a hemispherical push button 19 is provided at the upper end of the brush axis 10, which can also be pressed with the foot, in order to move the feed roller 7 from the higher relief position according to FIG. 2 into the lower working position to move down. It should be pointed out that with this sliding movement from top to bottom the locking device 15 is not self-locking, but rather enables the sliding movement of the brush axis 10 downwards. Here too, the toothing of the gearwheel 11 slides along the drive pinion 11a while maintaining the toothing engagement.
  • the respective height of the working position can be set with a height stop 20 shown in FIG. 2, which is formed here from a rotary knob 22 mounted in the extension arm 9 and having step-shaped steps 21 on the outer circumference.
  • the feed brush 7 can only be adjusted downward by exerting pressure on the push button 19 until the underside of the push button 19 abuts the step 21 on the left here.
  • the right step 21 or an intermediate step can be brought into line with the lower right edge of the push button 19 here by turning the rotary knob 22, so that the brush axis 10 can be adjusted further downward.
  • this height stop 20 can also be used to adjust the contact force and thus the sweeping intensity of the side brushes.
  • FIG. 3 shows a bottom view of the cantilever arm 9 along the section plane X in FIG. 2.
  • the remaining reference numerals correspond to the components described above.
  • the assembly is carried out by the gear transmission 11 / 11a and the remaining belt 12 (i.e. no longer to be put on each time the feed brush 7 is removed) in a simple, quick and safe manner.
  • the brush axis 10 can also be inserted into the extension arm 9 from below instead of through the lateral slot 23 or removed by pulling it downward.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (AREA)
  • Pens And Brushes (AREA)
  • Harvester Elements (AREA)
  • Brushes (AREA)

Abstract

The sweeping machine has at least one removable feed brush (7) which in the work position is located in a front corner area of a housing (4) on a beam arm (9) for feed of the swept material roller (2). Directly over the feed brush is arranged a gearwheel (11), which in the work position is in permanent engagement with a drive pinion (11a) located in the beam arm. The drive pinion is located on a shaft bearing housing (13) for a brush shaft (10) of the feed brush. The shaft bearing housing is releasably fixed on the beam arm. A height stop (20) is provided for limitation of the displacement movement of the brush shaft and height adjustment of the feed brush. <IMAGE>

Description

Die Erfindung betrifft eine Kehrmaschine mit wenigstens einer abnehmbaren Zuführbürste, die an einem vorderen Eckbereich eines Gehäuses an einem Auslegerarm zur Zuführung von Kehrgut zu einer Kehrwalze gelagert ist.The invention relates to a sweeper with at least one removable feed brush, which is mounted on a front corner region of a housing on a cantilever arm for feeding sweepings to a sweeping roller.

Derartige Kehrmaschinen dienen insbesondere zum Reinigen von größeren Hof- oder Hallenflächen, wobei das Kehrgut mittels einer oder mehrerer Kehrwalzen aufgenommen wird und in einen Fangkorb befördert wird. Hierbei sind Arbeitsleistungen von mehreren hundert Quadratmetern auf kraftschonende Weise möglich, da die Kehrmaschine mit einer etwa 80 cm breiten Kehrwalze auf einfache Weise über die zu kehrende Fläche geschoben wird. Am vorderen Eckbereich des Kehrmaschinengehäuses, das die Kehrwalze an der Oberseite umgibt und den Fangkorb für das Kehrgut lagert, sind eine oder zwei rotierende Zuführbürsten (sog. Seitenbesen) vorgesehen, so daß der Schmutz in dem Fußleistenbereich oder im Eckbereich entlang Wänden oder Randsteinen ebenfalls mit aufgenommen wird, da diese rotierenden Seitenbürsten den Schmutz zur Mitte und damit zur Kehrwalze hinfördern. Diese Seitenbesen werden dabei über einen Riementrieb von der Kehrwalze aus angetrieben, so daß die Seitenbesen einen gewissen Antriebsbedarf benötigen, der bei derartigen Kehrmaschinen alleine durch die Schiebearbeit der Bedienperson aufgebracht werden muß. Bei Arbeiten auf freien Flächen sind jedoch diese Seitenbesen nicht unbedingt erforderlich, so daß diese zur Reduzierung des Kraftbedarfes häufig abgebaut werden.Sweepers of this type are used in particular for cleaning larger courtyard or hall areas, the sweepings being picked up by means of one or more sweeping rollers and being conveyed into a collecting basket. Work performance of several hundred square meters is possible in a force-saving manner, since the sweeper is easily pushed over the surface to be swept with an approximately 80 cm wide sweeper roller. At the front corner area of the sweeper housing, which surrounds the top of the sweeping roller and stores the grass catcher, one or two rotating feed brushes (so-called side brushes) are provided so that the dirt in the baseboard area or in the corner area along walls or curbs is also included is picked up because these rotating side brushes convey the dirt towards the center and thus towards the roller brush. These side brushes are driven by a belt drive from the sweeping roller, so that the side brushes require a certain amount of drive, which in such sweepers has to be applied solely by pushing the operator. When working on open spaces, however, these side brushes are not absolutely necessary, so that they are often dismantled to reduce the power requirement.

Zur Erleichterung der Umbauarbeiten ist in dem DE-GM 94 03 678 des Anmelders vorgeschlagen worden, daß an dem am vorderen Eckbereich des Gehäuses vorgesehenen Auslegerarm eine abnehmbare Endkappe gelagert ist. Hierdurch kann die Zuführbürste einfach abgenommen werden, wodurch sich die Auskraglänge des Auslegerarmes erheblich reduziert und somit die Kehrmaschine in einem Transportkarton mit kleinerer Grundfläche verpackt werden kann.To facilitate the conversion work, DE-GM 94 03 678 of the applicant has proposed that a removable end cap is mounted on the cantilever arm provided on the front corner region of the housing. As a result, the feed brush can be easily removed, which considerably reduces the cantilever length of the cantilever arm and thus the sweeper in can be packed in a transport box with a smaller footprint.

Dies erfordert jedoch insbesondere wegen des Antriebsriemens noch einen gewissen Arbeitsaufwand bei dem Abbau des Seitenbesens und bei der dann wiederum erforderlichen Montage, da bei unsachgemäßer Montage des Riementriebes der Antriebsriemen der Zuführbürste abspringen kann oder bei falschem Auflegen die Zuführbürste eine verkehrte Drehrichtung aufweisen kann. Dies gilt auch für die Erstmontage der Seitenbesen durch den Käufer, da diese Seitenbesen für ein möglichst kompaktes Transportvolumen bei der Auslieferung abgebaut sind. Diese Erstmontage kann sich besonders umständlich gestalten, da der Kunde mit der Kehrmaschine noch nicht vertraut ist. Dieser Nachteil gilt auch für die Kehrmaschine gemäß der DE-A-42 11 789, bei der ein relativ langer Antriebsriemen bis zu der Antriebswelle der Zuführbürste verläuft, so daß bei einem An- bzw. Abbau der Zuführbürste der Antriebsriemen ebenfalls erneut aufgelegt bzw. abgenommen werden müßte. Neben dem zusätzlichen Arbeitsaufwand ist dabei die Gefahr der falschen Drehrichtung gegeben.However, this requires a certain amount of work, especially because of the drive belt, when dismantling the side brush and when installing it again, since the drive belt of the feed brush can jump off if the belt drive is incorrectly installed, or if the feed brush is incorrectly fitted, the feed brush can have a wrong direction of rotation. This also applies to the initial assembly of the side brushes by the buyer, since these side brushes are dismantled for the most compact possible transport volume during delivery. This initial assembly can be particularly cumbersome since the customer is not yet familiar with the sweeper. This disadvantage also applies to the sweeper according to DE-A-42 11 789, in which a relatively long drive belt runs up to the drive shaft of the feed brush, so that when the feed brush is attached or detached, the drive belt is also replaced or removed again should be. In addition to the additional work involved, there is also the risk of the wrong direction of rotation.

Demzufolge liegt der Erfindung die Aufgabe zugrunde, eine Kehrmaschine zu schaffen, die eine rasche Umstellmöglichkeit zwischen einer Betriebsstellung und einer Nicht-Betriebsstellung der Zuführbürste auf besonders einfache und sichere Weise ermöglicht.Accordingly, the object of the invention is to create a sweeper which enables a rapid changeover between an operating position and a non-operating position of the feed brush in a particularly simple and safe manner.

Diese Aufgabe wird gelöst mit einer Kehrmaschine gemäß den Merkmalen des Anspruches 1.This object is achieved with a sweeper according to the features of claim 1.

Durch die Anordnung eines flachen Zahnrades unmittelbar über der Zuführbürste, das in Arbeitsstellung mit einem im Auslegerarm gelagerten Antriebsritzel kämmt, erfolgt die Ankuppelung der abnehmbaren Zuführbürste bei der Montage problemlos und einfach, da kein Antriebsriemen mehr um- oder aufgelegt werden muß, sondern einfach mit der Aufsteckbewegung der Zuführbürste deren Zahnrad in Eingriff mit dem Antriebsritzel geht. Hierdurch wird ein Abspringen des Antriebsriemens aufgrund unsachgemäßen Auflegens verhindert. Zudem wird sichergestellt, daß die jeweils zutreffende Drehrichtung der Zuführbürste eingehalten wird, da aufgrund des Zahnradgetriebes keine Verwechslungsmöglichkeit beim Verschränken des Antriebsriemens besteht. Insgesamt wird somit die Montage und Abnahme der Zuführbürste wesentlich erleichtert.The arrangement of a flat gear wheel directly above the feed brush, which meshes in the working position with a drive pinion mounted in the cantilever arm, makes the coupling of the removable feed brush easy and simple during assembly, since no drive belt has to be repositioned or put on, but simply with the Slip-on movement of the feed brush whose gear wheel engages with the drive pinion. This will prevents the drive belt from jumping off due to improper application. In addition, it is ensured that the respective direction of rotation of the feed brush is observed, since there is no possibility of confusion when the drive belt is entangled due to the gear mechanism. Overall, the assembly and removal of the feed brush is made considerably easier.

In vorteilhafter Ausgestaltung ist das Antriebsritzel an dem Achsenlagergehäuse für die Bürstenachse der Zuführbürste gelagert, so daß vom Herstellungsaufwand kein Mehraufwand erforderlich ist. Durch die bevorzugte Ausbildung des Antriebsritzels mit einer gegenüber der Bauhöhe des Zahnrades größeren axialen Länge wird im Zusammenhang mit der höhenverstellbaren Bürstenachse erreicht, daß auch bei größerem Höhenverstellhub der Zuführbürste immer konstante Eingriffbedingungen und damit ein sicherer Antrieb gegeben ist, da der Antriebsriemen und das Antriebsritzel selbst bei abgenommener Zuführbürste als Baueinheit im Auslegerarm der Kehrmaschine verbleibt.In an advantageous embodiment, the drive pinion is mounted on the axle bearing housing for the brush axis of the feed brush, so that no additional effort is required from the manufacturing effort. The preferred design of the drive pinion with a greater axial length than the overall height of the gear in connection with the height-adjustable brush axis ensures that even with a larger height adjustment stroke the feed brush always has constant engagement conditions and thus a safe drive, since the drive belt and the drive pinion itself with the feed brush removed, remains as a structural unit in the boom arm of the sweeper.

Weitere vorteilhafte Ausgestaltungen sind Gegenstand der abhängigen Ansprüche.Further advantageous refinements are the subject of the dependent claims.

Nachfolgend wird ein Ausführungsbeispiel anhand der Zeichnungen näher erläutert und beschrieben. Hierin zeigen:

Fig. 1
eine schematische Seitenansicht der Kehrmaschine in Arbeitsstellung;
Fig. 2
eine vergrößerte Schnittdarstellung des vorderen Eckbereiches der Kehrmaschine gemäß Fig. 1; und
Fig. 3
eine Unteransicht des vorderen Eckbereichs der Kehrmaschine gemäß Pfeil X in Fig. 2.
An exemplary embodiment is explained and described in more detail below with reference to the drawings. Show here:
Fig. 1
a schematic side view of the sweeper in the working position;
Fig. 2
an enlarged sectional view of the front corner region of the sweeper shown in FIG. 1; and
Fig. 3
a bottom view of the front corner region of the sweeper according to arrow X in Fig. 2nd

In Fig. 1 ist eine Kehrnaschine 1 dargestellt, die wenigstens eine Kehrwalze 2 aufweist, die das auf dem Boden liegende Kehrgut aufnimmt und im Überwurfprinzip in einen Fangkorb 3 fördert. Der Fangkorb ist hier mittels eines Fangkorbrahmens 3a an einem die Kehrwalze 2 zumindest teilweise umgebenden Gehäuse 4 gelagert. An dem Gehäuse 4 bzw. dem Fangkorbrahmen 3a ist ein unter etwa 30° schräg nach oben verlaufender Griffbügel 5 zum Schieben der Kehrmaschine befestigt. Etwa bei einem Drittel der Länge des Griffbügels 5 sind zwei seitliche Schwenklager 6 vorgesehen, die zur Neigungsverstellung des Griffbügels 5 dienen. Am vorderen, seitlichen Eckbereich des Gehäuses 4 sind eine oder zwei Zuführbürsten 7 vorgesehen, die das Kehrgut in seitlicher Richtung zusammenfassen und der Kehrwalze 2 zuführen. Die Kehrwalze(n) ist/sind dabei über seitlich am Gehäuse 4 angeordnete Räder 8 abgestützt und zugleich angetrieben.In Fig. 1, a sweeper 1 is shown, which has at least one sweeping roller 2, which picks up the sweeping material lying on the floor and conveys it into a grass catcher 3. The grass catcher is here by means of a grass catcher frame 3a mounted on a housing 4 at least partially surrounding the sweeping roller 2. On the housing 4 or the catcher frame 3a is attached a handle bracket 5 which extends obliquely upward at approximately 30 ° for pushing the sweeper. Approximately one third of the length of the handle 5, two lateral pivot bearings 6 are provided, which serve to adjust the inclination of the handle 5. At the front, lateral corner area of the housing 4, one or two feed brushes 7 are provided, which combine the sweepings in the lateral direction and feed the sweeping roller 2. The sweeping roller (s) is / are supported and driven at the same time via wheels 8 arranged on the side of the housing 4.

In Fig. 2 ist der vordere Eckbereich mit der Zuführbürste 7 vergrößert im Längsschnitt dargestellt, wobei die Zuführbürste 7 mittels eines vom Gehäuse 4 auskragenden Auslegerarmes 9 abgestützt ist. Die Zuführbürste 7 weist eine aufrechte Bürstenachse 10 auf, die in Höhenrichtung verschiebbar gelagert ist. Dies erfolgt hier mittels eines Achsenlagergehäuses 13, in dem die Bürstenachse 10 mit Spielpassung eingepaßt ist und somit in aufrechter Richtung verschiebbar ist. Mittels einer innerhalb des Achsenlagergehäuses 13 angeordneten Druckfeder 14 wird der Bürstenkörper der Zuführbürste 7 in der Außerbetriebsstellung von der Bodenfläche vollständig oder zumindest größtenteils abgehoben. In der tieferen, gestrichelt gezeichneten Arbeitsstellung ragt hingegen die Bürstenachse 10 erheblich aus dem plattenförmigen Achsenlagergehäuse 13 nach unten heraus, so daß die Zuführbürste 7 mit gewissem Druck auf der Bodenfläche nahezu vollständig aufliegt.2, the front corner area with the feed brush 7 is shown enlarged in longitudinal section, the feed brush 7 being supported by a cantilever arm 9 projecting from the housing 4. The feed brush 7 has an upright brush axis 10 which is mounted displaceably in the vertical direction. This is done here by means of an axle bearing housing 13 in which the brush axis 10 is fitted with a clearance fit and can thus be moved in the upright direction. By means of a compression spring 14 arranged within the axle bearing housing 13, the brush body of the feed brush 7 is completely or at least largely lifted off the bottom surface in the inoperative position. In the deeper, dashed working position, however, the brush axis 10 protrudes downward from the plate-shaped axle bearing housing 13 so that the feed brush 7 rests almost completely on the floor surface with a certain pressure.

Die Zuführbürste 7 weist erfindungsgemäß über dem Bürstenkörper ein Zahnrad 11 auf, das mit einem in dem Auslegerarm 9 gelagerten Antriebsritzel 11a kämmt, um mittels eines von dem Antrieb der Kehrwalze 2 abgeleiteten Riemens 12 die Zuführbürste 7 anzutreiben. Das Zahnrad 11 ist achsgleich mit der Zuführbürste 7 an der Bürstenachse 10 befestigt, wobei das Zahnrad 11 auch einstückig mit dem Halterungskörper für die Borsten der Zuführbürste 7 ausgebildet sein kann. Das mit dem Zahnrad 11 in der hier dargestellten Arbeitsstellung kämmende Antriebsritzel 11a ist mittels eines Achsbolzens 11c an dem Achsenlagergehäuse 13 für die Bürstenachse 10 der Zuführbürste 7 gelagert. Das Achsenlagergehäuse 13 kann hierbei bevorzugt als Spritzgußteil ausgebildet sein und an der Unterseite des Auslegerarmes 9 mittels mehrerer Buchsen 13a (vgl. auch Fig. 3) lösbar befestigt sein. Über dem Antriebsritzel 11a ist bevorzugt einstückig mit diesem wiederum als Spritzgußteil eine achsgleiche Riemenscheibe 11b vorgesehen, um die im Herstellungsbetrieb der von dem Antrieb der Kehrwalze 2 angeleitete Riemen 12 herumgelegt und somit vormontiert wird. Dieser Riemen 12 wird von einer Antriebsscheibe 12a angetrieben, die ihrerseits von einem mit einem der seitlichen Räder 8 zusammenwirkenden Antriebsrad 8a (vgl. auch Fig. 3) angetrieben wird. Es sei jedoch darauf hingewiesen, daß anstatt des Riemens 12 eine andere Antriebsart (wie z. B. ein Band- oder auch Kettenantrieb) für das Antriebsritzel 11a gewählt werden kann.According to the invention, the feed brush 7 has a gearwheel 11 above the brush body, which meshes with a drive pinion 11a mounted in the extension arm 9 in order to drive the feed brush 7 by means of a belt 12 derived from the drive of the sweeping roller 2. The gear 11 is attached to the brush axis 10 in the same axis as the feed brush 7, the gear 11 also being integral with the holder body for the Bristles of the feed brush 7 can be formed. The drive pinion 11a which meshes with the gear 11 in the working position shown here is mounted on the axle bearing housing 13 for the brush axis 10 of the feed brush 7 by means of an axle bolt 11c. The axle bearing housing 13 can preferably be designed as an injection molded part and can be detachably fastened to the underside of the cantilever arm 9 by means of a plurality of bushings 13a (cf. also FIG. 3). Above the drive pinion 11a, an axially identical pulley 11b is preferably provided in one piece with it, as an injection molded part, around which the belt 12 guided by the drive of the sweeping roller 2 is placed and thus preassembled in the production plant. This belt 12 is driven by a drive pulley 12a, which in turn is driven by a drive wheel 8a interacting with one of the side wheels 8 (cf. also FIG. 3). However, it should be noted that instead of the belt 12, a different type of drive (such as a belt or chain drive) can be selected for the drive pinion 11a.

Unter weiterer Bezugnahme auf Fig. 2 wird nun ein weiteres Element der Kehrmaschine 1 bzw. dessen Zuführbürsten-Verstellung beschrieben. Um die Zuführbürste 7 in einer der beiden Stellungen, nämlich der höheren Entlastungsstellung oder in der tieferen Arbeitsstellung zu fixieren, ist eine in Fig. 2 nur schematisch durch Schraffur angedeutete Arretiervorrichtung 15 vorgesehen, die die Bürstenachse 10 in der jeweiligen Stellung fixiert und klemmt. In der hier gezeigten Ausführung ist die Arretiervorrichtung 15 durch einen die Bürstenachse 10 U-förmig umgreifenden Hebel oder Bügel gebildet, der von einer Feder vorgespannt ist. Hierdurch wird die Bürstenachse 10 in ihrer Höhenposition fixiert. Wenn nun die Arretiervorrichtung 15 beispielsweise mit dem Fuß heruntergedrückt wird, wird die Klemmung aufgehoben, so daß sich die Bürstenachse 10 innerhalb des umgreifenden Hebels im Achsenlagergehäuse 13 in Höhenrichtung frei bewegen kann. Aufgrund der Beaufschlagung mittels der Druckfeder 14 wird somit die Zuführbürste 7 nach oben gedrückt, um somit die höhere Entlastungsstellung gemäß Fig. 2 zu erreichen, wobei sich der Zahnkranz des Zahnrades 11 in Axialrichtung in der Verzahnung des Antriebsritzels 11a ebenfalls nach oben bewegt, jedoch weiterhin im Verzahnungseingriff bleibt.With further reference to FIG. 2, a further element of the sweeper 1 or its feed brush adjustment will now be described. In order to fix the feed brush 7 in one of the two positions, namely the higher relief position or in the lower working position, a locking device 15, indicated only schematically by hatching, is provided in FIG. 2, which fixes and clamps the brush axis 10 in the respective position. In the embodiment shown here, the locking device 15 is formed by a lever or bracket encompassing the brush axis 10 in a U-shape, which is biased by a spring. As a result, the brush axis 10 is fixed in its height position. If the locking device 15 is now pressed down, for example with the foot, the clamping is released, so that the brush axis 10 can move freely within the encompassing lever in the axle bearing housing 13 in the height direction. Due to the action by means of the compression spring 14, the feed brush 7 is thus pushed upward, in order to accordingly the higher relief position Fig. 2 to achieve, wherein the ring gear of the gear 11 in the axial direction in the toothing of the drive pinion 11a also moves upward, but remains in meshing engagement.

Wie aus Fig. 2 ersichtlich ist, ist an dem oberen Ende der Bürstenachse 10 ein halbkugelförmiger Druckknopf 19 vorgesehen, auf den ebenfalls mit dem Fuß gedrückt werden kann, um so die Zuführwalze 7 von der höheren Entlastungsstellung gemäß Fig. 2 in die tiefere Arbeitsstellung nach unten zu verschieben. Es sei darauf hingewiesen, daß bei dieser Verschiebebewegung von oben nach unten die Arretiervorrichtung 15 nicht selbsthemmend ist, sondern die Verschiebebewegung der Bürstenachse 10 nach unten ermöglicht. Auch hierbei gleitet die Verzahnung des Zahnrades 11 unter Beibehaltung des Verzahnungseingriffes entlang dem Antriebsritzel 11a. Wird jedoch der Druck auf den Druckknopf 19 beendet, so wird die Bürstenachse 10 aufgrund der Vorspannung der Druckfeder 14 minimal nach oben verschoben, so daß dann wiederum die Arretiervorrichtung 15 unter Vorspannung und Klemmung betätigt wird und "einrastet", um somit die Zuführbürste 7 in der Arbeitsposition zu halten.As can be seen from FIG. 2, a hemispherical push button 19 is provided at the upper end of the brush axis 10, which can also be pressed with the foot, in order to move the feed roller 7 from the higher relief position according to FIG. 2 into the lower working position to move down. It should be pointed out that with this sliding movement from top to bottom the locking device 15 is not self-locking, but rather enables the sliding movement of the brush axis 10 downwards. Here too, the toothing of the gearwheel 11 slides along the drive pinion 11a while maintaining the toothing engagement. However, if the pressure on the push button 19 is ended, the brush axis 10 is shifted slightly upwards due to the pretension of the compression spring 14, so that the locking device 15 is then actuated under pretension and clamping and "engages" so that the feed brush 7 in to keep the working position.

Die jeweilige Höhenlage der Arbeitsposition läßt sich mit einem in Fig. 2 dargestellten Höhenanschlag 20 einstellen, der hier aus einem im Auslegerarm 9 gelagerten Drehknopf 22 gebildet ist, der am Außenumfang treppenförmige Stufen 21 aufweist. In der hier gezeichneten Stellung läßt sich die Zuführbürste 7 unter Druckausübung auf den Druckknopf 19 nur so weit nach unten verstellen bis die Unterseite des Druckknopfes 19 an der hier linken Stufe 21 anstößt. Wenn jedoch die Zuführbürste 7 zunehmend verschleißt, kann durch Drehung des Drehknopfes 22 die hier rechte Stufe 21 oder eine Zwischenstufe in Übereinstimmung mit der hier rechten unteren Kante des Druckknopfes 19 gebracht werden, so daß sich die Bürstenachse 10 weiter nach unten verstellen läßt. Es sei darauf hingewiesen, daß hierbei das Zahnrad 11 mit dem Antriebsritzel 11a in Eingriff bleibt, da letzteres eine dem Verstellhub wenigstens entsprechende Bauhöhe (Axiallänge) besitzt. Neben der Nachstellung bei Bürstenverschleiß läßt sich mit diesem Höhenanschlag 20 auch die Auflagekraft und damit die Kehrintensität der Seitenbesen einstellen.The respective height of the working position can be set with a height stop 20 shown in FIG. 2, which is formed here from a rotary knob 22 mounted in the extension arm 9 and having step-shaped steps 21 on the outer circumference. In the position shown here, the feed brush 7 can only be adjusted downward by exerting pressure on the push button 19 until the underside of the push button 19 abuts the step 21 on the left here. However, if the feed brush 7 wears increasingly, the right step 21 or an intermediate step can be brought into line with the lower right edge of the push button 19 here by turning the rotary knob 22, so that the brush axis 10 can be adjusted further downward. It should be noted that here the gear 11 remains in engagement with the drive pinion 11a, since the latter has a height at least corresponding to the adjustment stroke (Axial length). In addition to the adjustment in the event of brush wear, this height stop 20 can also be used to adjust the contact force and thus the sweeping intensity of the side brushes.

In Fig. 3 ist eine Unteransicht auf den Auslegerarm 9 entlang der Schnittebene X in Fig. 2 dargestellt. Die übrigen Bezugszeichen entsprechen den vorstehend beschriebenen Bauteilen. Von besonderer Bedeutung ist die Ausführung des Endbereiches des Auslegerarmes 9, nämlich in Form einer gesonderten, aufschiebbaren Endkappe 30 (vgl. auch Fig. 1 und 2), die das Achsenlagergehäuse 13, die Bürstenachse 10, die Arretiervorrichtung 15 und die ihr zugeordneten Bauteile umgibt. Nach Abnehmen (in Richtung in die Zeichenebene hinein) der Endkappe 30 entlang von seitlichen, rechtwinklig verlaufenden Schiebeführungen 31 läßt sich somit die gesamte Baueinheit der Zuführwalze 7 mit ihrer Achse 10 zusammen mit dem Zahnrad 11 durch einen seitlichen Schlitz 23 in dem plattenförmigen Achsenlagergehäuse 13 von dem Auslegerarm 9 abnehmen, wobei der Riemen 12 auf dem Antriebsritzel 11a mit integrierter Riemenscheibe 11b verbleibt. Durch diese Abnahmemöglichkeit der Endkappe 30 zusammen mit den Bauteilen der Zuführbürste 7 ergibt sich für den Transport, insbesondere bei der Erstauslieferung, ein erheblich reduzierter Platzbedarf, so daß auch für Kehrmaschinen mit relativ breiten Kehrwalzen 2 und dementsprechend seitlich auskragenden Zuführbürsten 7, insbesondere in der Ausführung mit zwei Zuführbürsten 7 an dem rechten und dem linken vorderen Eckbereich der Kehrmaschine 1 noch relativ kleine, kompakte Verpackungskartons verwendet werden können. Die Montage erfolgt dabei durch das Zahnradgetriebe 11/11a und den verbleibenden (d. h. nicht mehr bei jeder Abnahme der Zuführbürste 7 aufzulegenden) Riemen 12 in einfacher, schneller und sicherer Weise. Es sei darauf hingewiesen, daß die Bürstenachse 10 anstatt durch den seitlichen Schlitz 23 auch von unten her in den Auslegerarm 9 eingesteckt bzw. durch Nachuntenziehen abgenommen werden kann.FIG. 3 shows a bottom view of the cantilever arm 9 along the section plane X in FIG. 2. The remaining reference numerals correspond to the components described above. Of particular importance is the design of the end region of the cantilever arm 9, namely in the form of a separate, push-on end cap 30 (cf. also FIGS. 1 and 2) which surrounds the axle bearing housing 13, the brush axle 10, the locking device 15 and the components assigned to it . After removing (in the direction of the plane of the drawing) the end cap 30 along lateral, right-angled sliding guides 31, the entire assembly of the feed roller 7 with its axis 10 together with the gear 11 through a side slot 23 in the plate-shaped axle bearing housing 13 from remove the extension arm 9, the belt 12 remaining on the drive pinion 11a with the integrated pulley 11b. This possibility of removing the end cap 30 together with the components of the feed brush 7 results in a significantly reduced space requirement for transport, in particular during the initial delivery, so that even for sweepers with relatively wide sweeping rollers 2 and accordingly laterally projecting feed brushes 7, in particular in the embodiment With two feed brushes 7 on the right and left front corner area of the sweeper 1, relatively small, compact packaging boxes can still be used. The assembly is carried out by the gear transmission 11 / 11a and the remaining belt 12 (i.e. no longer to be put on each time the feed brush 7 is removed) in a simple, quick and safe manner. It should be noted that the brush axis 10 can also be inserted into the extension arm 9 from below instead of through the lateral slot 23 or removed by pulling it downward.

Claims (10)

Kehrmaschine (1) mit wenigstens einer abnehmbaren Zuführbürste (7), die in Arbeitsstellung an einem vorderen Eckbereich eines Gehäuses (4) an einem Auslegerarm (9) zur Zuführung von Kehrgut zu einer Kehrwalze (2) gelagert ist, dadurch gekennzeichnet, daß
unmittelbar über der Zuführbürste (7) ein Zahnrad (11) angeordnet ist, das in Arbeitsstellung mit einem im Auslegerarm (9) gelagerten Antriebsritzel (11a) dauernd in Eingriff ist.Sweeper (1) with at least one removable feed brush (7), which is mounted in the working position on a front corner region of a housing (4) on a cantilever arm (9) for feeding sweepings to a sweeper roller (2), characterized in that
A gear wheel (11) is arranged directly above the feed brush (7) and in the working position is continuously engaged with a drive pinion (11a) mounted in the extension arm (9). Kehrmaschine nach Anspruch 1, dadurch gekennzeichnet, daß das Antriebsritzel (11a) an einem Achsenlagergehäuse (13) für eine Bürstenachse (10) der Zuführbürste (7) gelagert ist.Sweeper according to claim 1, characterized in that the drive pinion (11a) is mounted on an axle bearing housing (13) for a brush axis (10) of the feed brush (7). Kehrmaschine nach Anspruch 2, dadurch gekennzeichnet, daß das Achsenlagergehäuse (13) an dem Auslegerarm (9) lösbar befestigt ist.Sweeper according to claim 2, characterized in that the axle bearing housing (13) is detachably fastened to the extension arm (9). Kehrmaschine nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß ein Höhenanschlag (20) zur Begrenzung der Verschiebebewegung der Bürstenachse (10) und Höhenjustierung der Zuführbürste (7) vorgesehen ist.Sweeper according to one of claims 1 to 3, characterized in that a height stop (20) for limiting the displacement movement of the brush axis (10) and height adjustment of the feed brush (7) is provided. Kehrmaschine nach Anspruch 4, dadurch gekennzeichnet, daß der Höhenanschlag (20) durch einen Drehknopf (22) gebildet ist, der an seinem Umfang mehrere treppenförmige Stufen (21) aufweist.Sweeper according to Claim 4, characterized in that the height stop (20) is formed by a rotary knob (22) which has a plurality of stepped steps (21) on its circumference. Kehrmaschine insbesondere nach Anspruch 1, dadurch gekennzeichnet, daß an dem Auslegerarm (9) eine abnehmbare Endkappe (30) angeordnet ist.Sweeper in particular according to claim 1, characterized in that a removable end cap (30) is arranged on the extension arm (9). Kehrmaschine nach Anspruch 6, dadurch gekennzeichnet, daß die Endkappe (30) mittels einer Schiebeführung (31) auf den Auflegerarm (9) aufsteckbar ist.Sweeper according to Claim 6, characterized in that the end cap (30) can be pushed onto the support arm (9) by means of a sliding guide (31). Kehrmaschine nach Anspruch 6 oder 7, dadurch gekennzeichnet, daß das Achsenlagergehäuse (13) am vorderen Ende des Auslegerarmes (9) angeordnet ist und bei abgenommener Endkappe (30) die Bürstenachse (10) durch einen seitlichen Schlitz (23) herausnehmbar ist.Sweeper according to claim 6 or 7, characterized in that the axle bearing housing (13) is arranged at the front end of the extension arm (9) and with the one removed End cap (30), the brush axis (10) can be removed through a side slot (23). Kehrmaschine nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß das Antriebsritzel (11a) eine achsgleiche Riemenscheibe (11b) für einen vom Antrieb der Kehrwalze (2) abgeleiteten Riemen (12) aufweist und das Antriebsritzel (11a) und die Riemenscheibe (11b) vorzugsweise einstückig ausgebildet sind.Sweeper according to one of claims 1 to 8, characterized in that the drive pinion (11a) has an axially identical pulley (11b) for a belt (12) derived from the drive of the sweeping roller (2) and the drive pinion (11a) and the pulley (11b ) are preferably formed in one piece. Kehrmaschine nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß das Antriebsritzel (11a) eine wenigstens dem Höhenverstellhub der Zuführbürste (7) entsprechende axiale Länge aufweist.Sweeper according to one of claims 1 to 9, characterized in that the drive pinion (11a) has an axial length corresponding at least to the height adjustment stroke of the feed brush (7).
EP95108852A 1994-06-09 1995-06-08 Floor sweeper with at least one removable side brush Expired - Lifetime EP0686371B1 (en)

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CN110725252A (en) * 2019-11-25 2020-01-24 安徽省潜山县志发机电配件有限公司 High-strength connecting structure of cleaning disc brush
WO2021184811A1 (en) * 2020-03-18 2021-09-23 Techtronic Cordless Gp Sweeper

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CN110725252A (en) * 2019-11-25 2020-01-24 安徽省潜山县志发机电配件有限公司 High-strength connecting structure of cleaning disc brush
WO2021184811A1 (en) * 2020-03-18 2021-09-23 Techtronic Cordless Gp Sweeper

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DE9409333U1 (en) 1994-09-01
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