EP0641894B1 - Sweeping brush for a mobile cleaning apparatus and cleaning apparatus using the same - Google Patents

Sweeping brush for a mobile cleaning apparatus and cleaning apparatus using the same Download PDF

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Publication number
EP0641894B1
EP0641894B1 EP93114112A EP93114112A EP0641894B1 EP 0641894 B1 EP0641894 B1 EP 0641894B1 EP 93114112 A EP93114112 A EP 93114112A EP 93114112 A EP93114112 A EP 93114112A EP 0641894 B1 EP0641894 B1 EP 0641894B1
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EP
European Patent Office
Prior art keywords
broom
arm
boom
sweeping
drive
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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
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EP93114112A
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German (de)
French (fr)
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EP0641894A1 (en
Inventor
Marcel Boschung
Nicolas Jungo
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Marcel Boschung AG
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Marcel Boschung AG
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Application filed by Marcel Boschung AG filed Critical Marcel Boschung AG
Priority to AT93114112T priority Critical patent/ATE151483T1/en
Priority to DE59306126T priority patent/DE59306126D1/en
Priority to EP93114112A priority patent/EP0641894B1/en
Publication of EP0641894A1 publication Critical patent/EP0641894A1/en
Application granted granted Critical
Publication of EP0641894B1 publication Critical patent/EP0641894B1/en
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    • 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

Definitions

  • the invention relates to a broom arrangement on a mobile wiper device according to the preamble of claim 1.
  • EP-A-0 467 269 shows a broom arrangement on a mobile wiper device in which a central broom on a boom can be pivoted about a pivot axis on the wiper device by means of a first drive and by means of a separate second drive and a parallelogram arrangement about a second pivot axis on the boom.
  • This arrangement has two separate drives with respective controls and is correspondingly complex, in particular also due to the parallelogram arrangement with its joints.
  • US-A-4 754 521 also shows a mobile wiper with a central sweeper. This can be moved parallel to the front of the wiper device by a first drive and pivoted about an axis of rotation by a separate second drive. Here too, a corresponding effort is required for two drives and their control.
  • EP-A-0 087 936 shows a swivel drive for a wiping brush which can only be swiveled about a swivel axis
  • WO 91/19052 likewise shows such a broom arrangement, in which an articulated axis is additionally provided as an overload protection.
  • the invention has for its object to provide such a broom arrangement, which can be constructed as simply and inexpensively. Furthermore, the arrangement of the brooms should be able to be brought into different working positions as continuously as possible.
  • the broom arrangement can be produced simply and inexpensively.
  • the fact that the one drive can adjust the broom with respect to the boom both in the direction of travel and transversely thereto results in great flexibility of use, which will be explained in more detail below.
  • the broom is held resiliently in order to go into an evasive position independently of the drive when it encounters an obstacle. In this way, there is a simple protection against damage when the broom hits an obstacle without the need for sensors and drives.
  • FIGS 1 and 2 show a broom arrangement 10 with a circular broom 1, which is attached to a wiper 11, not shown.
  • the wiping device 11 can be, for example, a municipal vehicle or also a self-propelled electric vehicle that can be controlled by an accompanying operator; all possible known embodiments for the mobile wiper device 11 are conceivable here.
  • the broom arrangement 10 is fastened to this wiper device 11 by means of a holding plate 5, the type of fastening not being shown in detail in the figures.
  • the attachment can be done for example by screws or by clamping or in another known way.
  • the plate brush 1 is fastened to the holding plate 5 by means of an arm 2 and a bracket 8.
  • the present invention relates to the adjustment of the working position of the broom. So that this working position can be adjusted, in the example shown, a boom 8 pivotally mounted on the holding plate 5 is provided, which on its end opposite the pivot axis bears an in turn pivotable arm 2, on the end of the disc brush 1 with its drive 9 opposite the pivot axis is attached.
  • a hydraulic drive 7 is provided which, on the one hand, is fixedly attached to the holding plate 5 is and on the other hand engages with its actuating part on the boom 8 outside the pivot axis.
  • the hydraulic drive 7 can consist of its known hydraulic piston / cylinder arrangement, for example the cylinder is attached to the holding plate 5 and the piston acts on the boom 8 via a rod in order to pivot it depending on the piston position.
  • a compressed air drive or an electric drive 7 can of course also be provided.
  • a chain wheel 3a is shown, which lies in the axis of rotation of the arm 2 and is connected to it, so that rotation of the chain wheel causes a corresponding pivoting of the arm 2.
  • This rotation of the sprocket 3a causes a rotation of the shaft of the sprocket and thus a corresponding pivoting of the arm 2 fastened to the shaft.
  • the resulting effect is due to different positions of the plate broom 1 or the boom and the arm shown.
  • the translation is chosen such that in the middle position of the arm 8 there is a parallel position of the arm 2, as can be seen, for example, in FIG.
  • the arm 2 is pivoted out again into the left working position shown in FIG. 4 (viewed from the wiping device) with the boom 8 pivoted fully to the left.
  • the translation preferably takes place in this way that the center of the plate broom 1 moves on a straight line 18 when the boom 8 is pivoted, as can be seen in FIG. 3.
  • the swiveling movement can also take place in such a way that the center of the plate broom moves on a non-straight path.
  • the choice of the translation and the path is made by choosing the sizes A, B, C and the diameter of the sprocket 3a (Fig. 2).
  • FIG. 5 shows a further preferred aspect of the invention.
  • the spring arrangement of the broom ensures that it can automatically avoid an obstacle. In the exemplary embodiment explained so far, this is achieved by the springs 6 and 6a.
  • FIG. 5 it can be seen how the plate broom 1 has avoided an obstacle 13 when it hits it. Evasion is made possible in that the arm 2 can be pivoted independently of the pivoting movement of the arm 8 by a force acting on the broom. With this pivoting of the arm 2, the sprocket 3a is rotated accordingly. The chain 4 allows this rotation due to the springs 6 and 6a.
  • FIG. 5 shows how the chain movement forced by the evasive movement of the broom 1 leads to the extension of the spring 6 or to the relief and contraction of the spring 6a. As soon as no external force acts on the plate broom, the force balance between the stretched and the contracted spring leads back to pivoting the arm 2 into its normal working position determined by the pivoting angle of the arm 8.
  • the plate broom is guided in such a way that there is no shift in the working direction when the broom is moved transversely, or the setting in the direction of travel is carried out during the swiveling movement so that the broom remains in a straight line despite the swiveling.
  • the displacement is also effected by a single drive element, which enables considerable cost savings and simplification of the arrangement.
  • the work of the sweeping broom is guaranteed in every position and the position changes are infinitely variable. In particular, wiping in corners is also possible in this way, as can be seen in FIG. 4.
  • collision protection against obstacles is achieved purely mechanically by the suspension of the broom. There are therefore no sources of error due to the provision of sensors and electronics, which in turn serves to save costs and operational security.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
  • Cleaning In General (AREA)
  • Brushes (AREA)

Abstract

The sweeping brush (1) is fixed to a pivotable cantilever (8) by means of a rotatable arm (2). A drive means (7) effects the pivoting movement of the cantilever (8). Through a chain wheel (3a) coupled to the arm (2) and a chain (4) the pivoting of the cantilever (8) causes a rotation of the arm (2). In this way, the sweeping brush (1) can be positioned by a drive means in a simple way both transversely to the travelling direction and in the travelling direction of the cleaning apparatus (11). <IMAGE>

Description

Die Erfindung betrifft eine Kehrbesenanordnung an einem fahrbaren Wischgerät gemäss Oberbegriff des Anspruchs 1.The invention relates to a broom arrangement on a mobile wiper device according to the preamble of claim 1.

Es ist bekannt, bei fahrbaren Wischgeräten, wie sie zum Wischen von Böden und Strassen verwendet werden, einen Kehrbesen vorzusehen, der in verschiedene Arbeitspositionen gebracht werden kann. EP-A-0 467 269 zeigt eine Kehrbesenanordnung an einem fahrbaren Wischgerät, bei welcher ein zentraler Kehrbesen an einem Ausleger mittels eines ersten Antriebes um eine Schwenkachse am Wischgerät und mittels eines separaten zweiten Antriebes und einer Parallelogrammanordnung um eine zweite Schwenkachse am Ausleger schwenkbar ist. Diese Anordnung weist zwei separate Antriebe mit jeweiliger Steuerung auf und ist entsprechend aufwendig, insbesondere auch durch die Parallelogrammanordnung mit ihren Gelenken.It is known to provide a sweeping broom for mobile wiping devices, such as those used for wiping floors and streets, which can be brought into different working positions. EP-A-0 467 269 shows a broom arrangement on a mobile wiper device in which a central broom on a boom can be pivoted about a pivot axis on the wiper device by means of a first drive and by means of a separate second drive and a parallelogram arrangement about a second pivot axis on the boom. This arrangement has two separate drives with respective controls and is correspondingly complex, in particular also due to the parallelogram arrangement with its joints.

US-A-4 754 521 zeigt ebenfalls ein fahrbares Wischgerät mit einem zentralen Kehrbesen. Dieser ist durch einen ersten Antrieb parallel zur Front des Wischgerätes verschiebbar und durch einen separaten zweiten Antrieb um eine Drehachse schwenkbar. Auch hierbei ist ein entsprechender Aufwand für zwei Antriebe und deren Steuerung nötig.US-A-4 754 521 also shows a mobile wiper with a central sweeper. This can be moved parallel to the front of the wiper device by a first drive and pivoted about an axis of rotation by a separate second drive. Here too, a corresponding effort is required for two drives and their control.

EP-A-0 087 936 zeigt einen Schwenkantrieb für eine Wischbürste, die lediglich um eine Schwenkachse schwenkbar ist und WO 91/19052 zeigt ebenfalls eine solche Kehrbesenanordnung, bei welcher zusätzlich eine Knickachse als Ueberlastsicherung vorgesehen ist.EP-A-0 087 936 shows a swivel drive for a wiping brush which can only be swiveled about a swivel axis, and WO 91/19052 likewise shows such a broom arrangement, in which an articulated axis is additionally provided as an overload protection.

Der Erfindung liegt die Aufgabe zugrunde, eine solche Kehrbesenanordnung zu schaffen, welche möglichst einfach und kostengünstig aufgebaut werden kann. Ferner soll durch die Anordnung der Kehrbesen möglichst stufenlos in verschiedene Arbeitspositionen bringbar sein.The invention has for its object to provide such a broom arrangement, which can be constructed as simply and inexpensively. Furthermore, the arrangement of the brooms should be able to be brought into different working positions as continuously as possible.

Die Aufgabe wird bei einer Kehrbesenanordnung der eingangs genannten Art mit den kennzeichnenden Merkmalen des Anspruchs 1 gelöst.The object is achieved in a broom arrangement of the type mentioned with the characterizing features of claim 1.

Durch das Vorsehen lediglich eines Antriebes in Kombination mit dem beanspruchten Kraftübertragungsmittel wird die Kehrbesenanordnung einfach und kostengünstig herstellbar. Dadurch, dass der eine Antrieb den Kehrbesen in bezug auf den Ausleger sowohl in Fahrtrichtung als auch quer dazu einstellen kann, ergibt sich eine grosse Flexibilität des Einsatzes, was nachfolgend noch näher erläutert werden wird.By providing only one drive in combination with the claimed power transmission means, the broom arrangement can be produced simply and inexpensively. The fact that the one drive can adjust the broom with respect to the boom both in the direction of travel and transversely thereto results in great flexibility of use, which will be explained in more detail below.

Bei einer bevorzugten Ausführungsart ist der Kehrbesen federnd gehalten, um beim Auftreffen auf ein Hindernis unabhängig vom Antrieb in eine Ausweichposition zu gehen. Auf diese Weise ergibt sich eine einfache Sicherung gegen Schäden beim Auftreffen des Besens auf ein Hindernis, ohne dass dazu Sensoren und Antriebe benötigt werden.In a preferred embodiment, the broom is held resiliently in order to go into an evasive position independently of the drive when it encounters an obstacle. In this way, there is a simple protection against damage when the broom hits an obstacle without the need for sensors and drives.

Nachfolgend werden Ausführungsbeispiele der Erfindung anhand der Figuren näher erläutert. Dabei zeigt:

  • Figur 1 schematisch eine Kehrbesenanordnung an einem Wischfahrzeug von der Seite her gesehen;
  • Figur 2 die Kehrbesenanordnung gemäss Figur 1 von oben her gesehen;
  • Figur 3 die Kehrbesenanordnung in verschiedenen Verstellpositionen;
  • Figur 4 eine Kehrbesenanordnung in verschiedenen Stellungen und beim Arbeiten in einer Ecke;
  • Figur 5 eine Kehrbesenanordnung beim Auftreffen auf ein Hindernis.
Exemplary embodiments of the invention are explained in more detail below with reference to the figures. It shows:
  • Figure 1 schematically seen a broom arrangement on a wiper from the side;
  • Figure 2 seen the broom arrangement according to Figure 1 from above;
  • Figure 3 shows the broom arrangement in different adjustment positions;
  • Figure 4 shows a broom arrangement in different positions and when working in a corner;
  • Figure 5 shows a broom arrangement when hitting an obstacle.

Die Figuren 1 und 2 zeigen eine Kehrbesenanordnung 10 mit einem Tellerbesen 1, die an einem nicht näher dargestellten Wischgerät 11 befestigt ist. Das Wischgerät 11 kann z.B. ein Kommunalfahrzeug sein oder auch ein selbstfahrendes Elektrofahrzeug, das von einer mitlaufenden Bedienungsperson gesteuert werden kann; es sind hier alle möglichen bekannten Ausführungsformen für das fahrbare Wischgerät 11 denkbar. An diesem Wischgerät 11 ist die Kehrbesenanordnung 10 mittels einer Halteplatte 5 befestigt, wobei in den Figuren die Befestigungsart nicht näher dargestellt ist. Die Befestigung kann z.B. durch Schrauben oder durch Klemmen oder auf eine andere bekannte Art erfolgen. In dem gezeigten Beispiel ist der Tellerbesen 1 mittels eines Armes 2 und eines Auslegers 8 an der Halteplatte 5 befestigt. Im Betrieb des Wischgeräts wird der Tellerbesen 1 drehend angetrieben, was z.B. durch einen nicht näher dargestellten Antriebsmotor 9 erfolgen kann. Der Antriebsmotor 9 kann z.B. ein Elektromotor oder ein Hydraulikmotor sein, der von einer entsprechenden elektrischen bzw. hydraulischen Quelle im Wischgerät gespiesen wird. Der Antrieb 9 bildet indes nicht Gegenstand der vorliegenden Erfindung und wird daher nicht weiter dargestellt, da solche Antriebe zum Drehantrieb des Tellerbesens 1 bekannt sind. Durch die Drehung des Tellerbesens 1 um seine Achse wird das zu wischende Gut in der Regel an eine Aufnahmevorrichtung am Wischgerät gefördert, z.B. an eine Saugöffnung eines Saugers. Auch dies ist, da bekannt, hier nicht weiter dargestellt.Figures 1 and 2 show a broom arrangement 10 with a circular broom 1, which is attached to a wiper 11, not shown. The wiping device 11 can be, for example, a municipal vehicle or also a self-propelled electric vehicle that can be controlled by an accompanying operator; all possible known embodiments for the mobile wiper device 11 are conceivable here. The broom arrangement 10 is fastened to this wiper device 11 by means of a holding plate 5, the type of fastening not being shown in detail in the figures. The attachment can be done for example by screws or by clamping or in another known way. In the example shown, the plate brush 1 is fastened to the holding plate 5 by means of an arm 2 and a bracket 8. During operation of the wiper device, the circular broom 1 is driven in rotation, which can be done, for example, by a drive motor 9 (not shown in detail). The drive motor 9 can be, for example, an electric motor or a hydraulic motor which is fed by a corresponding electrical or hydraulic source in the wiper device. The drive 9, however, is not the subject of the present invention and is therefore not shown further, since such drives for rotating the disk broom 1 are known. By turning the broom 1 about its axis, this becomes wiping goods are generally conveyed to a receiving device on the wiper device, for example to a suction opening of a vacuum cleaner. As is known, this is also not shown here.

Die vorliegende Erfindung betrifft nun die Verstellung der Arbeitsposition des Kehrbesens. Damit diese Arbeitsposition verstellt werden kann, ist bei dem gezeigten Beispiel ein an der Halteplatte 5 schwenkbar gelagerter Ausleger 8 vorgesehen, welcher an seinem der Schwenkachse gegenüberliegenden Ende einen wiederum schwenkbaren Arm 2 trägt, an dessen der Schwenkachse gegenüberliegenden Ende der Tellerbesen 1 mit seinem Antrieb 9 befestigt ist. Zur Verschwenkung des Auslegers 8 von der in Figur 2 gezeigten Position an der in Fahrtrichtung gesehen rechten Kante des Wischgerätes 11 über eine Mittelstellung in eine korrespondierende Stellung bei der linken Kante des Wischgerätes ist ein hydraulischer Antrieb 7 vorgesehen, der einerseits fest an der Halteplatte 5 befestigt ist und andererseits mit seinem Betätigungsteil am Ausleger 8 ausserhalb der Schwenkachse angreift. Der hydraulische Antrieb 7 kann dabei aus seiner bekannten hydraulischen Kolben/Zylinder-Anordnung bestehen, wobei z.B. der Zylinder an der Halteplatte 5 befestigt ist und der Kolben über eine Stange auf den Ausleger 8 einwirkt, um diesen je nach Kolbenstellung zu verschwenken. Anstelle eines hydraulischen Antriebes kann natürlich auch ein Druckluftantrieb oder ein elektrischer Antrieb 7 vorgesehen sein. Durch den selben Antrieb 7 wird nun aber nicht nur der Ausleger 8 bewegt, sondern auch mittels der Schwenkbewegung des Auslegers 8 der Arm 2. Dazu ist in dem gezeigten Beispiel in Figur 2 ein Kettenrad 3a gezeigt, welches in der Drehachse des Arms 2 liegt und mit diesem verbunden ist, so dass eine Drehung des Kettenrades eine entsprechende Schwenkung des Armes 2 bewirkt. Dies kann so ausgeführt sein, dass am Ende des Auslegers 8 eine Welle gelagert ist, an der unterhalb des Auslegers der Arm 2 befestigt ist und oberhalb des Auslegers das Kettenrad 3a. Das Kettenrad 3a wird von einer Kette 4 umschlungen, welche mit ihren beiden Enden an der Halteplatte 5 befestigt ist. Die Befestigung der Kettenenden an der Halteplatte 5 erfolgt dabei jeweils über eine Zugfeder 6 bzw. 6a. Durch diese beispielhaft gezeigte Anordnung wird nun aus der Schwenkbewegung des Auslegers 8, welche vom Antrieb 7 bewirkt wird, eine Schwenkbewegung des Armes 2 abgeleitet. Beim Schwenken des Auslegers 8 läuft nämlich das Kettenrad 3a auf der Kette 4 ab und dreht sich dadurch. Diese Drehung des Kettenrades 3a bewirkt dabei eine Drehung der Welle des Kettenrades und damit eine entsprechende Verschwenkung des an der Welle befestigten Armes 2. In den Figuren 3 und 4 ist der sich ergebende Effekt durch verschiedene Stellungen des Tellerbesens 1 bzw. des Auslegers und des Armes dargestellt. Durch entsprechende Wahl der Uebersetzung zwischen der Schwenkbewegung des Auslegers und der Drehung des Kettenrades kann gewählt werden, was für eine Drehung des Armes 2 einer bestimmten Verschwenkung des Auslegers 8 entspricht. In dem gezeigten Beispiel ist die Uebersetzung so gewählt, dass sich in Mittelstellung des Auslegers 8 eine dazu parallele Lage des Armes 2 ergibt, wie dies z.B. in Figur 4 ersichtlich ist. Wird der Ausleger 8 weiter aus der Mittelstellung hinaus nach links geschwenkt, so ergibt sich wieder ein Ausschwenken des Armes 2 bis in die in Figur 4 gezeigte (vom Wischgerät her betrachtet) linke Arbeitsposition bei voll nach links ausgeschwenktem Ausleger 8. Vorzugsweise erfolgt die Uebersetzung so, dass sich der Mittelpunkt des Tellerbesens 1 bei der Verschwenkung des Auslegers 8 auf einer Geraden 18 bewegt, wie dies in Figur 3 ersichtlich ist. Die Schwenkbewegung kann aber auch so erfolgen, dass das Zentrum des Tellerbesens sich auf einer nicht geraden Bahn bewegt. Die Wahl der Uebersetzung und der Bahn erfolgt dabei durch Wahl der Grössen A,B,C und des Durchmessers des Kettenrades 3a (Fig. 2).The present invention relates to the adjustment of the working position of the broom. So that this working position can be adjusted, in the example shown, a boom 8 pivotally mounted on the holding plate 5 is provided, which on its end opposite the pivot axis bears an in turn pivotable arm 2, on the end of the disc brush 1 with its drive 9 opposite the pivot axis is attached. For pivoting the boom 8 from the position shown in FIG. 2 on the right edge of the wiper device 11, as seen in the direction of travel, via a central position into a corresponding position on the left edge of the wiper device, a hydraulic drive 7 is provided which, on the one hand, is fixedly attached to the holding plate 5 is and on the other hand engages with its actuating part on the boom 8 outside the pivot axis. The hydraulic drive 7 can consist of its known hydraulic piston / cylinder arrangement, for example the cylinder is attached to the holding plate 5 and the piston acts on the boom 8 via a rod in order to pivot it depending on the piston position. Instead of a hydraulic drive, a compressed air drive or an electric drive 7 can of course also be provided. By means of the same drive 7, not only is the arm 8 moved, but also by means of the pivoting movement of the arm 8, the arm 2. For this purpose, in the example shown in FIG. 2, a chain wheel 3a is shown, which lies in the axis of rotation of the arm 2 and is connected to it, so that rotation of the chain wheel causes a corresponding pivoting of the arm 2. This can be carried out in such a way that a shaft is mounted on the end of the boom 8, to which the arm 2 is fastened below the boom and above the boom the sprocket 3a. The sprocket 3a is wrapped in a chain 4, which is fastened to the holding plate 5 with its two ends. The chain ends are each fastened to the holding plate 5 via a tension spring 6 or 6a. Through this arrangement shown as an example, a pivoting movement of the arm 2 is now derived from the pivoting movement of the arm 8, which is caused by the drive 7. When the boom 8 is pivoted, the chain wheel 3a runs on the chain 4 and rotates as a result. This rotation of the sprocket 3a causes a rotation of the shaft of the sprocket and thus a corresponding pivoting of the arm 2 fastened to the shaft. In FIGS. 3 and 4, the resulting effect is due to different positions of the plate broom 1 or the boom and the arm shown. By appropriate choice of the translation between the pivoting movement of the boom and the rotation of the sprocket, it can be selected which of a rotation of the arm 2 corresponds to a specific pivoting of the boom 8. In the example shown, the translation is chosen such that in the middle position of the arm 8 there is a parallel position of the arm 2, as can be seen, for example, in FIG. If the boom 8 is pivoted further to the left out of the central position, the arm 2 is pivoted out again into the left working position shown in FIG. 4 (viewed from the wiping device) with the boom 8 pivoted fully to the left. The translation preferably takes place in this way that the center of the plate broom 1 moves on a straight line 18 when the boom 8 is pivoted, as can be seen in FIG. 3. However, the swiveling movement can also take place in such a way that the center of the plate broom moves on a non-straight path. The choice of the translation and the path is made by choosing the sizes A, B, C and the diameter of the sprocket 3a (Fig. 2).

Figur 5 zeigt einen weiteren bevorzugten Aspekt der Erfindung. Dabei wird durch federnde Anordnung des Kehrbesens erreicht, dass dieser einem Hindernis selbsttätig ausweichen kann. Bei dem bisher erläuterten Ausführungsbeispiel wird dies durch die Federn 6 bzw. 6a erreicht. In Figur 5 ist ersichtlich, wie der Tellerbesen 1 beim Auftreffen auf ein Hindernis 13 diesem ausgewichen ist. Das Ausweichen wird ermöglicht, indem der Arm 2 unabhängig von der Schwenkbewegung des Armes 8 von einer am Besen angreifenden Kraft verschwenkt werden kann. Bei dieser Verschwenkung des Armes 2 wird das Kettenrad 3a entsprechend gedreht. Die Kette 4 erlaubt diese Drehung infolge der Federn 6 und 6a. In Figur 5 ist ersichtlich, wie die durch die Ausweichbewegung des Besens 1 erzwungene Kettenbewegung zur Dehnung der Feder 6 bzw. zur Entlastung und zum Zusammenziehen der Feder 6a führt. Sobald keine äussere Kraft mehr auf den Tellerbesen einwirkt, führt der Kraftausgleich zwischen der gedehnten und der zusammengezogenen Feder wieder zum Ausschwenken des Armes 2 in seine normale durch den Schwenkwinkel des Auslegers 8 bestimmte Arbeitsposition.FIG. 5 shows a further preferred aspect of the invention. The spring arrangement of the broom ensures that it can automatically avoid an obstacle. In the exemplary embodiment explained so far, this is achieved by the springs 6 and 6a. In FIG. 5 it can be seen how the plate broom 1 has avoided an obstacle 13 when it hits it. Evasion is made possible in that the arm 2 can be pivoted independently of the pivoting movement of the arm 8 by a force acting on the broom. With this pivoting of the arm 2, the sprocket 3a is rotated accordingly. The chain 4 allows this rotation due to the springs 6 and 6a. FIG. 5 shows how the chain movement forced by the evasive movement of the broom 1 leads to the extension of the spring 6 or to the relief and contraction of the spring 6a. As soon as no external force acts on the plate broom, the force balance between the stretched and the contracted spring leads back to pivoting the arm 2 into its normal working position determined by the pivoting angle of the arm 8.

Bei dem gezeigten Beispiel wird der Tellerbesen so geführt, dass sich keine Verschiebung in der Arbeitsrichtung ergibt wenn der Besen quer verschoben wird, bzw. die Einstellung in Fahrtrichtung erfolgt bei der Schwenkbewegung so, dass der Besen trotz des Schwenkens auf einer geraden Linie bleibt. Die Verschiebung wird ferner durch ein einziges Antriebselement bewirkt, was eine erhebliche Kostenersparnis und Vereinfachung der Anordnung ermöglicht. Die Arbeit des Kehrbesens ist dabei in jeder Position gewährleistet und die Positionsänderungen erfolgen stufenlos. Insbesondere kann auf diese Weise auch in Ecken gut gewischt werden, wie dies in Figur 4 ersichtlich ist. Die Anfahrsicherung an Hindernissen erfolgt in dem gezeigten Beispiel rein mechanisch durch die Federung des Besens. Es ergeben sich daher keine Fehlerquellen durch das Vorsehen von Sensoren und Elektronik, was wiederum der Kostenersparnis und der Betriebssicherheit dient.In the example shown, the plate broom is guided in such a way that there is no shift in the working direction when the broom is moved transversely, or the setting in the direction of travel is carried out during the swiveling movement so that the broom remains in a straight line despite the swiveling. The displacement is also effected by a single drive element, which enables considerable cost savings and simplification of the arrangement. The work of the sweeping broom is guaranteed in every position and the position changes are infinitely variable. In particular, wiping in corners is also possible in this way, as can be seen in FIG. 4. In the example shown, collision protection against obstacles is achieved purely mechanically by the suspension of the broom. There are therefore no sources of error due to the provision of sensors and electronics, which in turn serves to save costs and operational security.

Anstelle des in den Beispielen gezeigten Tellerbesens kann natürlich auch ein anders geformter, angetriebener oder nicht angetriebener Besen vorgesehen sein.Instead of the plate broom shown in the examples, a differently shaped, driven or non-driven broom can of course also be provided.

Claims (5)

  1. Sweeping device mounted on a sweeping vehicle where at least one sweeping broom can be brought into different working positions, the broom being mounted at one end of an arm (2) and the other end of the arm (2) is rotatably fixed to a boom (8) that can be swivelled by means of a drive (7), and where the position of the broom relative to the boom (8) can be regulated by means of just this one drive (7) both in the direction of the path of the vehicle and transversally to this direction through the action of a mechanical transmission (3a, 4) which acts on the arm and derives a rotation of the arm (2) from a swivelling motion of the boom (8), characterized in that the transmission consists of a toothed wheel (3a) mounted on the arm and a chain (4) or a toothed belt which loops around the toothed wheel and the extremities of which are fixed at a certain distance from the swivelling axis.
  2. Sweeping device according to claim 1, characterized in that the sweeping broom is maintained resiliently so as to go into a dodging position independently of the action of the drive when the broom encounters an obstacle.
  3. Sweeping device according to one of claims 1 or 2, characterized in that the sweeping broom is a rotatable dish-shaped broom (1; 1').
  4. Sweeping device according to claim 1, characterized in that the extremities of the chain or of the toothed belt, respectively, are attached to a base plate (5) that carries the boom (8).
  5. Sweeping device according to claim 4, characterized in that each extremity of the chain is attached by means of an extensible spring (6, 6a).
EP93114112A 1993-09-03 1993-09-03 Sweeping brush for a mobile cleaning apparatus and cleaning apparatus using the same Expired - Lifetime EP0641894B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT93114112T ATE151483T1 (en) 1993-09-03 1993-09-03 SWEEPING BRUSH ARRANGEMENT FOR A MOBILE MOP AND MOP WITH THE SAME
DE59306126T DE59306126D1 (en) 1993-09-03 1993-09-03 Broom arrangement for a mobile mopping device and mopping device with the same
EP93114112A EP0641894B1 (en) 1993-09-03 1993-09-03 Sweeping brush for a mobile cleaning apparatus and cleaning apparatus using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP93114112A EP0641894B1 (en) 1993-09-03 1993-09-03 Sweeping brush for a mobile cleaning apparatus and cleaning apparatus using the same

Publications (2)

Publication Number Publication Date
EP0641894A1 EP0641894A1 (en) 1995-03-08
EP0641894B1 true EP0641894B1 (en) 1997-04-09

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EP93114112A Expired - Lifetime EP0641894B1 (en) 1993-09-03 1993-09-03 Sweeping brush for a mobile cleaning apparatus and cleaning apparatus using the same

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EP (1) EP0641894B1 (en)
AT (1) ATE151483T1 (en)
DE (1) DE59306126D1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2776684B1 (en) 1998-03-26 2000-06-23 Int Stifung Fur Tech Know How SCANNING DEVICE FOR ROAD VEHICLE
DE29812882U1 (en) * 1998-07-20 1999-12-09 KomEnt Entsorgungsfahrzeuge GmbH, 85649 Brunnthal Suction sweeper
EP1424448A1 (en) * 2002-11-28 2004-06-02 Boschung Engineering AG Sweeping apparatus and method of operating the same
EP1967653B1 (en) * 2007-03-07 2009-09-16 Hako-Werke GMBH Road sweeper
CN108221788A (en) * 2018-03-14 2018-06-29 长沙学院 Road roadside sweeping robot

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4490874A (en) * 1982-02-27 1985-01-01 Schmidt Manufacturing & Equipment (Uk) Ltd. Brush control means
IT1195887B (en) * 1986-07-31 1988-10-27 Dulevo Spa ROAD SWEEPER MACHINE FOR WASTE COLLECTION
GB2244741B (en) * 1990-06-08 1995-02-15 Schmidt Mfg & Equip Brush mounting arm assembly for a cleaning vehicle
GB9015529D0 (en) * 1990-07-14 1990-08-29 Schmidt Mfg & Equip Cleaning vehicles

Also Published As

Publication number Publication date
DE59306126D1 (en) 1997-05-15
ATE151483T1 (en) 1997-04-15
EP0641894A1 (en) 1995-03-08

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