EP1967653A1 - Road sweeper - Google Patents

Road sweeper Download PDF

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Publication number
EP1967653A1
EP1967653A1 EP07103692A EP07103692A EP1967653A1 EP 1967653 A1 EP1967653 A1 EP 1967653A1 EP 07103692 A EP07103692 A EP 07103692A EP 07103692 A EP07103692 A EP 07103692A EP 1967653 A1 EP1967653 A1 EP 1967653A1
Authority
EP
European Patent Office
Prior art keywords
frame
boom assembly
broom
sweeper
spring
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
EP07103692A
Other languages
German (de)
French (fr)
Other versions
EP1967653B1 (en
Inventor
Kai Ketelsen
Lorenz Kersting
Heinz Studtfeld
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.)
Hako Werke GmbH and Co
Hako GmbH
Original Assignee
Hako Werke GmbH and Co
Hako GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hako Werke GmbH and Co, Hako GmbH filed Critical Hako Werke GmbH and Co
Priority to ES07103692T priority Critical patent/ES2331857T3/en
Priority to EP07103692A priority patent/EP1967653B1/en
Priority to DE502007001538T priority patent/DE502007001538D1/en
Priority to AT07103692T priority patent/ATE443184T1/en
Publication of EP1967653A1 publication Critical patent/EP1967653A1/en
Application granted granted Critical
Publication of EP1967653B1 publication Critical patent/EP1967653B1/en
Not-in-force legal-status Critical Current
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

Definitions

  • the invention relates to a sweeper having at least one rotary driven broom mounted on the forward end of a boom assembly pivotally supported about a pivot axis extending substantially perpendicular to the floor to be cleaned in a front center region of the frame of the sweeper the boom assembly has a frame-proximal portion and a leaklike portion which are pivotable relative to each other against spring force.
  • Such sweepers usually have a suction device with which the dirt dissolved from the soil is sucked up and conveyed into a dirt collecting container, to solve the dirt often two rotary driven brush are present, which have the shape of disc brushes and with the help of the dirt in one area transported between the side brush and sucked out of this area.
  • An additional rotary driven broom which preferably also has the shape of a disc brush, may be pivotally supported in a front central region of the frame of the sweeper and located in the direction of travel in front of the side brush. This broom is used, for example, to allow for cleaning on a roadway sweeper of elevated sidewalks without the sweeper would have to be moved to the level of the sidewalk.
  • a sprocket is non-rotatably mounted concentrically to the pivot axis between frame-near section and besennahem section on Besennahen section over which a chain is guided, which are fastened by springs on both sides of the pivot axis on the frame of the sweeper.
  • the force acting on the broom thereby causes a twisting of the broom-carrying broom-near portion of the boom assembly against the force acting on the chain spring force, and the broom returns by the spring force acting after the escape from the obstacle to its normal Operating position back.
  • the known structure solves the problem of collision protection, but is a mechanically relatively complex and prone to failure solution because not only in addition to at least two spring elements, a chain and a sprocket are required, but also represent the spring elements and the chain exposed, failure-prone components.
  • the first outer panel of the double hinge may be fixedly connected to the frame proximate portion and its second outer panel fixed to the broom portion of the boom assembly, while the first outer panel is pivotally connected to the spring force generating spring assembly within the near-by, preferably tubular portion of the boom assembly is.
  • This spring arrangement is preferably compressed during pivoting of the broom-near portion of the feeder assembly relative to its frame-proximal portion. Since in this structure, the spring assembly is located within the bomber portion of the boom assembly and the pivotal connection between the spring assembly and the first outer plate of the double hinge formed in the manner of a swing door hinge within the hinge assembly and within the frame-proximal portion of the boom assembly is a particularly compact design and a particularly good Protection against damage.
  • the frame-proximate portion of the boom assembly may have an inner portion and an outer portion which are pivotally connected to one another in a controlled manner, the double joint at the outer portion is attached and the inner portion controlled by its articulation on the machine frame is pivotable.
  • a stop arrangement is provided for limiting the pivoting of the broom-near portion of the boom assembly relative to its frame-proximate portion.
  • the stopper assembly may include a stopper pin attached to one of the sections of the cantilevered assembly radially extending and a stopper plate attached to the other of the sections and having a stopper pin receiving slot.
  • the receiving slot is preferably symmetrical with respect to the longitudinal axis of the section carrying it, so that the maximum pivoting of the frame-near section is the same in both directions.
  • FIG. 1 shows a conventional ground-sweeping sweeper with steerable front wheels 2 and rear wheels 3, comprising a machine frame having a releasable coupling unit 4 (FIG. FIG. 2 ) Has.
  • a machine frame having a releasable coupling unit 4 (FIG. FIG. 2 ) Has.
  • On the machine frame are in common, not shown way the various units supported and on it two in the front region of the sweeper laterally arranged disc brushes 5, 6 are mounted., Which are driven by hydraulic motors 7, 8 and their position can be changed in the usual way to the cleaning process, the dirt to be detached from the ground and to transport between the two plate brooms, so that the dirt is then sucked in again usual way via a suction mouth of the sweeper.
  • a boom assembly is provided at the front end of the sweeper in the central region of the frame, at the outer end of a broom 10 is supported in the form of a third Tellerbürst.e, which can be rotationally driven by a hydraulic motor 11.
  • the cantilever arrangement of the third sweeping broom 10 consists of a machine-proximate section 13, 13 ', 14, 14', which is pivotally arranged on the coupling unit 4 about an axis extending substantially perpendicular to the floor to be cleaned, and a section near the floor 15, which has a machine-proximate section a two-part inner section 13, 13 'and a pivotable about the axis 17, two-part outer portion 14 14', which is coupled in a manner to be described with the bennennen section 15 so that in the normal cleaning operation, a coaxial alignment of outer part 14th 'of the outer portion 14, 14' and barbed portion 15 results.
  • the inner portion 13, 13 ' can be pivoted about the articulation on the machine frame 4 by means of a hydraulic working cylinder 16.
  • the outer portion 14, 14 ' is coupled via a gas spring 18 with the inner portion 13, 13', so that the outer portion 14, 14 'in his in FIG. 2 shown position, however, about the axis 17 in the position corresponding FIG. 9 pivoted when the direction of rotation of the broom 10 is reversed, in this way can the operator will move the broom 10 across the floor in the desired manner to effect a cleaning.
  • the broom 10 can also be adjusted in height when the sweeper is, for example, on a roadway and with the broom a sidewalk or other elevated area to be cleaned.
  • the part 14 'of the outer portion of the frame-proximate portion 13, 13', 14, 14 'of the Auslegeranordnug 12 is connected to the part 14 via a substantially parallel to the floor to be cleaned extending pivot axis 19 and controlled in a manner not shown pivots become.
  • a shoulder 60 secured to a side arm 59 protects against the unnecessary swirling of dirt due to the rotation of the sweeping bale 10.
  • FIGS. 3 to 5 Such as a comparison of FIGS. 3 to 5 with the FIGS. 6 and 7 shows, the near-top portion 15 of the boom assembly relative to the outer part 14 'of the outer portion 14, 14' of the frame-proximal portion 13, 13 ', 14, 14' pivotally.
  • a double joint 30 is provided between the broom-like portion 15 and the outer portion 14, 14 'of the bomber portion of the boom assembly, which is formed according to a known swing door hinge.
  • the two pivot axes 31 and 32 of this double joint are formed by pivot pins which are connected to the side edges of an intermediate plate 34 of the double joint 30.
  • a first outer plate 33 of the double joint is fixedly connected to the outer end of the outer part 14 'of the machine-proximal portion 13, 13', 14, 14 'of the boom assembly 12 and coupled with a side edge with the pivot axis 32.
  • a second outer panel 35 is secured to the inner end of the tubular beak portion 15 of the boom assembly 12 and pivotally coupled to the pivot axis 31 by a side edge. According to the operation of a swing door hinge thus the near-covering portion 15 of the boom assembly 12 from the position according to FIGS. 3 to 5 seen from above both to the right ( FIGS. 6 to 8 ) as well as to the left ( FIGS. 9 to 11 ) are pivoted or bent.
  • a bearing block 37 is fixed centrally, which extends in the direction of the leaklike portion 15 through central openings in an intermediate plate 34 and the second outer plate 35 of the double joint 30.
  • a connection part 39 pivotally fastened.igt to which a coaxially to the longitudinal axis of the broom-near portion 15 of the boom assembly 12 extending rod 40 is attached.
  • This rod extends slidably by a spring block 45 consisting of elastically deformable plastic elements, which is supported at the inner end by a retaining plate 42 and a cylindrical support portion 41 fixed to the inner end of the bennennahen portion 15 flange plate on which the second outer plate 35 of Double joint 30 is attached.
  • a spring block 45 consisting of elastically deformable plastic elements, which is supported at the inner end by a retaining plate 42 and a cylindrical support portion 41 fixed to the inner end of the bennennahen portion 15 flange plate on which the second outer plate 35 of Double joint 30 is attached.
  • locknuts 46 On the outer end of the spring block 45 are supported on the rod 40 mounted locknuts 46, between which and the spring block 45 is a washer.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Soil Working Implements (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Abstract

Sweeping machine comprises rotating brushes held on the front end of a boom with frame sections (13, 14) connected together via a spring-loaded double hinge which pivots about axles parallel to a pivoting axis so that a brush section (15) pivots from its normal operating position in two directions. Preferred Features: A first outer plate of the double hinge is connected to the frame sections and a second outer plate is connected to the brush section.

Description

Die Erfindung bezieht sich auf eine Kehrmaschine mit mindestens einem drehend angetriebenen Kehrbesen, der am vorderen Ende einer Auslegeranordnung gehaltert ist, die um eine sich im Wesentlichen senkrecht zum zu reinigenden Boden erstreckende Schwenkachse schwenkbar in einem vorderen Mittelbereich des Rahmens der Kehrmaschine gehaltert ist., wobei die Auslegeranordnung einen rahmennahen Abschnitt und einen besennahen Abschnitt aufweist, die gegen Federkraft relativ zueinander verschwenkbar sind.The invention relates to a sweeper having at least one rotary driven broom mounted on the forward end of a boom assembly pivotally supported about a pivot axis extending substantially perpendicular to the floor to be cleaned in a front center region of the frame of the sweeper the boom assembly has a frame-proximal portion and a leaklike portion which are pivotable relative to each other against spring force.

Derartige Kehrmaschinen haben üblicherweise eine Saugeinrichtung, mit der der vom Boden gelöste Schmutz aufgesaugt und in einen Schmutzsammelbehälter befördert wird, wobei zum Lösen des Schmutzes häufig zwei drehend angetriebene Seitenbesen vorhanden sind, die die Form von Tellerbürsten haben und mit deren Hilfe der Schmutz in einen Bereich zwischen den Seitenbesen befördert und aus diesem Bereich aufgesaugt wird. Ein zusätzlicher drehend angetriebener Kehrbesen, der vorzugsweise ebenfalls die Form einer Tellerbürste hat, kann schwenkbar in einem vorderen Mittelbereich des Rahmens der Kehrmaschine gehaltert sein und sich in Fahrtrichtung vor den Seitenbesen befinden. Dieser Kehrbesen dient beispielsweise dazu, bei auf einer Fahrbahn befindlicher Kehrmaschine das Reinigen von erhöhten Bürgersteigen zu ermöglichen, ohne dass die Kehrmaschine auf die Ebene des Bürgersteigs verfahren werden müsste.Such sweepers usually have a suction device with which the dirt dissolved from the soil is sucked up and conveyed into a dirt collecting container, to solve the dirt often two rotary driven brush are present, which have the shape of disc brushes and with the help of the dirt in one area transported between the side brush and sucked out of this area. An additional rotary driven broom, which preferably also has the shape of a disc brush, may be pivotally supported in a front central region of the frame of the sweeper and located in the direction of travel in front of the side brush. This broom is used, for example, to allow for cleaning on a roadway sweeper of elevated sidewalks without the sweeper would have to be moved to the level of the sidewalk.

Es ist bereits bekannt ( EP-B-0 641 894 ) einen am vorderen Mittelbereich des Rahmens der Kehrmaschine mittels einer Auslegeranordnung gehalterten, drehend angetriebenen Kehrbesen dadurch gegen Beschädigungen durch Anfahren von Hindernissen zu schützen, dass man die Auslegeranordnung aus einem rahmennahen Abschnitt und einem besennahen Abschnitt aufbaut, die gegen Federkraft relativ zueinander verschwenkbar sind, so dass beim Anfahren eines Hindernisses durch den Kehrbesen der besennahe Abschnitt gegen die Federkraft bezüglich dem rahmennahen Abschnitt verschwenkt wird. Hierzu ist konzentrisch zur Schwenkachse zwischen rahmennahem Abschnitt und besennahem Abschnitt am besennahen Abschnitt unverdrehbar ein Kettenrad befestigt, über das eine Kette geführt ist, die mittels Federn zu beiden Seiten der Schwenkachse am Rahmen der Kehrmaschine befestigt sind. In der normalen Betriebsstellung wird der Kehrbesen durch die Kette und die an dieser angreifenden Federn in seiner Lage gehalten. Kommt es zum Anfahren eines Hindernisses, so bewirkt die dadurch auf dem Kehrbesen wirkende Kraft eine Verdrehung des den Kehrbesen tragenden besennahen Abschnittes der Auslegeranordnung gegen die auf die Kette wirkende Federkraft, und der Kehrbesen kehrt durch die wirkende Federkraft nach dem Freikommen vom Hindernis in seine normale Betriebsstellung zurück.It is already known ( EP-B-0 641 894 ) one at the front central portion of the frame of the sweeper by means of a boom assembly gehalterten, rotating driven broom thereby protect against damage by approaching obstacles, that one builds the boom assembly of a frame-proximal portion and a broom-close section, which are pivotable relative to spring force relative to each other, so that when approaching an obstacle by the broom the broom near section against the spring force is pivoted with respect to the frame near section. For this purpose, a sprocket is non-rotatably mounted concentrically to the pivot axis between frame-near section and besennahem section on Besennahen section over which a chain is guided, which are fastened by springs on both sides of the pivot axis on the frame of the sweeper. In the normal operating position of the broom is held by the chain and the springs acting on this in its position. If there is an approach to an obstacle, the force acting on the broom thereby causes a twisting of the broom-carrying broom-near portion of the boom assembly against the force acting on the chain spring force, and the broom returns by the spring force acting after the escape from the obstacle to its normal Operating position back.

Der bekannte Aufbau löst das Problem des Anfahrschutzes, stellt jedoch eine mechanisch verhältnismäßig aufwendige und störanfällige Lösung dar, weil nicht nur zusätzlich zu mindestens zwei Federelementen eine Kette und ein Kettenrad erforderlich sind, sondern darüber hinaus die Federelemente und die Kette freiliegende, störanfällige Bauteile darstellen.The known structure solves the problem of collision protection, but is a mechanically relatively complex and prone to failure solution because not only in addition to at least two spring elements, a chain and a sprocket are required, but also represent the spring elements and the chain exposed, failure-prone components.

Es ist Aufgabe der Erfindung, eine Kehrmaschine derart auszubilden, dass der den Anfahrschutz für den Kehrbesen bewirkende Mechanismus einfach und stabil aufgebaut ist.It is an object of the invention to design a sweeper such that the shock protection for the broom causing mechanism is simple and stable.

Zur Lösung dieser Aufgabe wird eine Kehrmaschine der eingangs erwähnten Art erfindungsgemäß derart ausgestaltet, dass die beiden Abschnitte der Auslegeranordnung über ein entsprechend einem Pendeltürband ausgebildetes, federbelastetes Doppelgelenk miteinander verbunden sind, das um zur Schwenkachse im Wesentlichen parallele Achsen schwenkbar ist, so dass der besennahe Abschnitt in zwei Richtungen aus seiner normalen Betriebsstellung verschwenkbar ist.To solve this problem, a sweeper of the type mentioned is inventively designed such that the both sections of the boom assembly are connected to each other via a spring-loaded double joint designed in accordance with a hinged door hinge, which is pivotable about axes substantially parallel to the pivot axis, so that the near-section is pivotable in two directions out of its normal operating position.

Bei der erfindungsgemäßen Kehrmaschine erfolgt somit die schwenkbare Verbindung zwischen dem rahmennahen Abschnitt und dem besennahen Abschnitt der Kehrmaschine durch ein kompakt aufgebautes, federbelastetes Doppelgelenk, so dass sich der besennahe Abschnitt beim Anfahren eines Hindernisses durch den Kehrbesen gegen die Federkraft in der für das Ausweichen optimalen Richtung verschwenken kann. Da außer dem federbelasteten Doppelgelenk keine weiteren Bauteile erforderlich sind, ergibt sich darüber hinaus ein einfacher und kompakter Aufbau.In the sweeper according to the invention thus the pivotal connection between the frame-near section and the broom-near section of the sweeper by a compact constructed, spring-loaded double joint, so that the Besennahe section when approaching an obstacle by the broom against the spring force in the optimal direction for the deflection can pivot. Since no other components are required in addition to the spring-loaded double joint, beyond a simple and compact structure results.

Die erste Außenplatte des Doppelgelenks kann fest mit dem rahmennahen Abschnitt und seine zweite Außenplatte fest mit dem besennahen Abschnitt der Auslegeranordnung verbunden sein, während die erste Außenplatte über eine Schwenkverbindung mit der die Federkraft erzeugenden, innerhalb des besennahen, vorzugsweise rohrförmigen Abschnitts der Auslegeranordnung vorgesehenen Federanordnung verbunden ist. Diese Federanordnung wird beim Verschwenken des besennahen Abschnitts der Anlegeranordnung relativ zu deren rahmennahen Abschnitt vorzugsweise zusammengedrückt. Da sich bei diesem Aufbau die Federanordnung innerhalb des besennahen Abschnitts der Auslegeranordnung befindet und die Schwenkverbindung zwischen Federanordnung und erster Außenplatte des nach Art eines Pendeltürbandes ausgebildeten Doppelgelenks innerhalb des Gelenkaufbaus und innerhalb des rahmennahen Abschnittes der Auslegeranordnung liegt, ist ein besonders kompakter Aufbau und ein besonders guter Schutz gegen Beschädigungen gegeben.The first outer panel of the double hinge may be fixedly connected to the frame proximate portion and its second outer panel fixed to the broom portion of the boom assembly, while the first outer panel is pivotally connected to the spring force generating spring assembly within the near-by, preferably tubular portion of the boom assembly is. This spring arrangement is preferably compressed during pivoting of the broom-near portion of the feeder assembly relative to its frame-proximal portion. Since in this structure, the spring assembly is located within the bomber portion of the boom assembly and the pivotal connection between the spring assembly and the first outer plate of the double hinge formed in the manner of a swing door hinge within the hinge assembly and within the frame-proximal portion of the boom assembly is a particularly compact design and a particularly good Protection against damage.

Um den Kehrbesen gesteuert über die zu reinigende Fläche führen zu können, ohne dass hierzu die Kehrmaschine verfahren werden müsste, kann der rahmennahe Abschnitt der Auslegeranordnung einen inneren Abschnitt und einen äußeren Abschnitt aufweisen, die gesteuert verschwenkbar miteinander verbunden sind, wobei am äußeren Abschnitt das Doppelgelenk angebracht ist und der innere Abschnitt gesteuert um seine Anlenkung am Maschinenrahmen verschwenkbar ist.In order to be able to guide the broom over the surface to be cleaned without the sweeper having to travel for this purpose, the frame-proximate portion of the boom assembly may have an inner portion and an outer portion which are pivotally connected to one another in a controlled manner, the double joint at the outer portion is attached and the inner portion controlled by its articulation on the machine frame is pivotable.

Vorzugsweise ist zur Begrenzung der Verschwenkung des besennahen Abschnitts der Auslegeranordnung relativ zu deren rahmennahen Abschnitt eine Anschlaganordnung vorhanden.Preferably, a stop arrangement is provided for limiting the pivoting of the broom-near portion of the boom assembly relative to its frame-proximate portion.

Die Anschlaganordnung kann einen Anschlagstift, der an einem der Abschnitte der Auslegeranordnung sich radial erstreckend angebracht ist, und eine Anschlagplatte aufweisen, die am anderen der Abschnitte befestigt ist und die einen Aufnahmeschlitz für den Anschlagstift aufweist. Der Aufnahmeschlitz ist vorzugsweise zur Längsachse des ihn tragenden Abschnittes symmetrisch, so dass die maximale Verschwenkung des rahmennahen Abschnitts in beiden Richtungen gleich ist.The stopper assembly may include a stopper pin attached to one of the sections of the cantilevered assembly radially extending and a stopper plate attached to the other of the sections and having a stopper pin receiving slot. The receiving slot is preferably symmetrical with respect to the longitudinal axis of the section carrying it, so that the maximum pivoting of the frame-near section is the same in both directions.

Die Erfindung wird im Folgenden anhand der schematisch und vereinfacht ein Ausführungsbeispiel zeigenden Figuren näher erläutert.

Figur 1
zeigt in perspektivischer Darstellung eine Kehrmaschine.
Figur 2
zeigt schematisch die Bürstenanordnung der Kehrmaschine aus Figur 1.
Figur 3
zeigt in einer Teildraufsicht den mittleren Kehrbesen in einer nach rechts verschwenkten Stellung.
Figur 4
zeigt in einer Teildraufsicht den Bereich des Doppelgelenks der Auslegeranordnung des mittleren Kehrbesens in der Stellung gemäß Figur 3.
Figur 5
zeigt einen Schnitt durch den das Doppelgelenk aufweisenden Bereich der Auslegeranordnung des mittleren Kehrbesens in der Stellung gemäß Figuren 3 und 4.
Figur 6
zeigt in einer Teildarstellung und teilweise aufgebrochen die Lage des Doppelgelenks bei Anfahren eines Hindernisses durch den in der Stellung gemäß Figur 3 befindlichen Kehrbesens.
Figur 7
zeigt in einer Teildraufsicht den Bereich des Doppelgelenks in der abgeknickten Stellung gemäß Figur 6.
Figur 8
zeigt einen Schnitt in Richtung nach oben gesehen durch den Bereich des Doppelgelenks in der abgeknickten Stellung gemäß Figuren 6 und 7.
Figur 9
zeigt in einer Darstellung gemäß Figur 6 die Abknickung des Doppelgelenks bei einer nach links verschwenkten Stellung des Kehrbesens.
Figur 10
zeigt eine Teildraufsicht entsprechend Figur 7 bei der abgeknickten Stellung gemäß Figur 9.
Figur 11
zeigt eine perspektivische Teilansicht des Bereichs des Doppelgelenks in der abgeknickten Stellung gemäß Figuren 9 und 10.
The invention will be explained in more detail below with reference to the schematically and simplified an embodiment showing figures.
FIG. 1
shows a sweeper in perspective view.
FIG. 2
schematically shows the brush assembly of the sweeper FIG. 1 ,
FIG. 3
shows in a partial plan view of the middle broom in a pivoted position to the right.
FIG. 4
shows in a partial plan view of the region of the double joint of the boom assembly of the middle sweeping broom in the position according to FIG. 3 ,
FIG. 5
shows a section through the double-joint region of the boom assembly of the middle broom in the position according to Figures 3 and 4 ,
FIG. 6
shows in a partial view and partially broken the position of the double joint when approaching an obstacle by the in accordance with the position FIG. 3 located sweeping broom.
FIG. 7
shows in a partial plan view of the region of the double joint in the bent position according to FIG. 6 ,
FIG. 8
shows a section in the upward direction through the region of the double joint in the bent position according to FIG FIGS. 6 and 7 ,
FIG. 9
shows in a representation according to FIG. 6 the kinking of the double joint in a pivoted to the left position of the broom.
FIG. 10
shows a partial plan view accordingly FIG. 7 in the bent position according to FIG. 9 ,
FIG. 11
shows a partial perspective view of the region of the double joint in the bent position according to Figures 9 and 10 ,

Figur 1 zeigt eine übliche über den Boden verfahrbare Kehrmaschine mit lenkbaren Vorderrädern 2 und Hinterrädern 3, die einen Maschinenrahmen aufweist, der eine lösbare Kopplungseinheit 4 (Figur 2) hat. Auf dem Maschinenrahmen sind in üblicher, nicht dargestellter Weise die verschiedenen Aggregate gehaltert und an ihm sind auch zwei im vorderen Bereich der Kehrmaschine seitlich angeordnete Tellerbesen 5, 6 angebracht., die von Hydraulikmotoren 7, 8 angetrieben werden und deren Stellung sich in üblicher Weise verändern lässt, um beim Reinigungsvorgang den Schmutz vom Boden zu lösen und zwischen die beiden Tellerbesen zu befördern, so dass der Schmutz dann in wiederum üblicher Weise über einen Saugmund der Kehrmaschine aufgesaugt wird. FIG. 1 shows a conventional ground-sweeping sweeper with steerable front wheels 2 and rear wheels 3, comprising a machine frame having a releasable coupling unit 4 (FIG. FIG. 2 ) Has. On the machine frame are in common, not shown way the various units supported and on it two in the front region of the sweeper laterally arranged disc brushes 5, 6 are mounted., Which are driven by hydraulic motors 7, 8 and their position can be changed in the usual way to the cleaning process, the dirt to be detached from the ground and to transport between the two plate brooms, so that the dirt is then sucked in again usual way via a suction mouth of the sweeper.

Zusätzlich ist am vorderen Ende der Kehrmaschine im Mittelbereich des Rahmens eine Auslegeranordnung vorgesehen, an deren äußerem Ende ein Kehrbesen 10 in Form einer dritter Tellerbürst.e gehaltert ist, der mittels eines Hydraulikmotors 11 drehend angetrieben werden kann. Die Auslegeranordnung des dritt.en Kehrbesens 10 besteht aus einem an der Kopplungseinheit 4 um eine im Wesentlichen senkrecht zum zu reinigenden Boden verlaufende Achse schwenkbar angeordneten, maschinennahen Abschnitt 13, 13', 14, 14' und einem besennahen Abschnitt 15, Der maschinennahe Abschnitt hat einen zweiteiligen inneren Abschnitt 13, 13' und einen um die Achse 17 verschwenkbaren, zweiteiligen äußeren Abschnitt 14 14', der in noch zu beschreibender Weise mit dem besennahen Abschnitt 15 gekoppelt ist, so dass sich im normalen Reinigungsbetrieb eine koaxiale Ausrichtung von äußerem Teil 14' des äußeren Abschnitts 14, 14' und besennahem Abschnitt 15 ergibt.In addition, a boom assembly is provided at the front end of the sweeper in the central region of the frame, at the outer end of a broom 10 is supported in the form of a third Tellerbürst.e, which can be rotationally driven by a hydraulic motor 11. The cantilever arrangement of the third sweeping broom 10 consists of a machine-proximate section 13, 13 ', 14, 14', which is pivotally arranged on the coupling unit 4 about an axis extending substantially perpendicular to the floor to be cleaned, and a section near the floor 15, which has a machine-proximate section a two-part inner section 13, 13 'and a pivotable about the axis 17, two-part outer portion 14 14', which is coupled in a manner to be described with the bennennen section 15 so that in the normal cleaning operation, a coaxial alignment of outer part 14th 'of the outer portion 14, 14' and barbed portion 15 results.

Der innere Abschnitt 13, 13' kann mittels eines hydraulischen Arbeitszylinders 16 um die Anlenkung am Maschinenrahmen 4 verschwenkt werden. Der äußere Abschnitt 14, 14' ist über eine Gasdruckfeder 18 mit dem inneren Abschnitt 13, 13' gekoppelt, so dass der äußere Abschnitt 14, 14' in seiner in Figur 2 gezeigten Lage gehalten wird, jedoch um die Achse 17 in die Stellung entsprechend Figur 9 verschwenkt, wenn die Drehrichtung des Kehrbesens 10 umgekehrt wird, Auf diese Weise kann die Bedienungsperson den Kehrbesen 10 in der gewünschten Weise über den Boden bewegen, um eine Reinigung zu bewirken.The inner portion 13, 13 'can be pivoted about the articulation on the machine frame 4 by means of a hydraulic working cylinder 16. The outer portion 14, 14 'is coupled via a gas spring 18 with the inner portion 13, 13', so that the outer portion 14, 14 'in his in FIG. 2 shown position, however, about the axis 17 in the position corresponding FIG. 9 pivoted when the direction of rotation of the broom 10 is reversed, in this way can the operator will move the broom 10 across the floor in the desired manner to effect a cleaning.

Es sei erwähnt, dass der Kehrbesen 10 auch in der Höhe verstellt werden kann, wenn sich die Kehrmaschine beispielsweise auf einer Fahrbahn befindet und mit dem Kehrbesen ein Bürgersteig oder eine andere erhöhte Flächegereinigt werden soll. Hierzu ist das Teil 14' des äußeren Abschnitts des rahmennahen Abschnitts 13, 13', 14, 14' der Auslegeranordnug 12 mit dem Teil 14 über eine sich im Wesentlichen parallel zum zu reinigenden Boden erstreckende Schwenkachse 19 verbunden und kann in nicht dargestellter Weise gesteuert verschwenkt werden. Eine an einem seitlichen Arm 59 gehalterte Schurze 60 schützt gegen das unnötige Verwirbeln von Schmutz infolge der Drehung des Kehrbesens 10.It should be noted that the broom 10 can also be adjusted in height when the sweeper is, for example, on a roadway and with the broom a sidewalk or other elevated area to be cleaned. For this purpose, the part 14 'of the outer portion of the frame-proximate portion 13, 13', 14, 14 'of the Auslegeranordnug 12 is connected to the part 14 via a substantially parallel to the floor to be cleaned extending pivot axis 19 and controlled in a manner not shown pivots become. A shoulder 60 secured to a side arm 59 protects against the unnecessary swirling of dirt due to the rotation of the sweeping bale 10.

Eine derart aufgebaute Kehrmaschine ist üblich, so dass eine Erläuterung weiterer Einzelheiten von deren Aufbau zum Verständnis der Erfindung nicht notwendig ist.Such a constructed sweeper is common, so that an explanation of further details of their structure for understanding the invention is not necessary.

Wie beispielsweise ein Vergleich der Figuren 3 bis 5 mit den Figuren 6 und 7 zeigt, ist der besennahe Abschnitt 15 der Auslegeranordnung gegenüber dem äußeren Teil 14' des äußeren Abschnitts 14, 14' des rahmennahen Abschnitts 13, 13', 14, 14' schwenkbar. Hierzu ist zwischen dem besennahen Abschnitt 15 und dem äußeren Abschnitt 14, 14' des besennahen Abschnitts der Auslegeranordnung ein Doppelgelenk 30 vorgesehen, das entsprechend einem an sich bekannten Pendeltürband ausgebildet ist. Die beiden Schwenkachsen 31 und 32 dieses Doppelgelenks sind durch Schwenkstifte gebildet, die mit den Seitenkanten einer Zwischenplatte 34 des Doppelgelenks 30 verbunden sind. Eine erste Außenplatten 33 des Doppelgelenks ist fest mit dem äußeren Ende des äußeren Teils 14' des maschinennahen Abschnitts 13, 13', 14, 14' der Auslegeranordnung 12 verbunden und mit einer Seitenkante mit der Schwenkachse 32 gekoppelt.Such as a comparison of FIGS. 3 to 5 with the FIGS. 6 and 7 shows, the near-top portion 15 of the boom assembly relative to the outer part 14 'of the outer portion 14, 14' of the frame-proximal portion 13, 13 ', 14, 14' pivotally. For this purpose, a double joint 30 is provided between the broom-like portion 15 and the outer portion 14, 14 'of the bomber portion of the boom assembly, which is formed according to a known swing door hinge. The two pivot axes 31 and 32 of this double joint are formed by pivot pins which are connected to the side edges of an intermediate plate 34 of the double joint 30. A first outer plate 33 of the double joint is fixedly connected to the outer end of the outer part 14 'of the machine-proximal portion 13, 13', 14, 14 'of the boom assembly 12 and coupled with a side edge with the pivot axis 32.

Eine zweite Außenplatte 35 ist am inneren Ende des rohrförmigen, besennahen Abschnitts 15 der Auslegeranordnung 12 befestigt und mit einer Seitenkante verschwenkbar mit der Schwenkachse 31 gekoppelt. Entsprechend der Funktionsweise eines Pendeltürbandes kann somit der besennahe Abschnitt 15 der Auslegeranordnung 12 aus der Stellung gemäß Figuren 3 bis 5 von oben gesehen sowohl nach rechts (Figuren 6 bis 8) als auch nach links (Figuren 9 bis 11) verschwenkt oder abgeknickt werden. Diese Verlagerungsbewegung wird dadurch in beiden Richtungen im gleichen Maße begrenzt, dass am äußeren Teil 14' des äußeren Abschnitts 14 starr ein Anschlagelement 50 befestigt ist, das einen bei unverschwenktem besennahen Abschnitt 15 zu dessen Längsachse symmetrischen, in etwa V-förmigen Ausschnitt oder Schlitz 51 aufweist, in den ein Anschlagstift 52 eingreift, der sich radial nach außen erstreckend am besennahen Abschnitt. 15 befestigt ist. Dieser Anschlagstift begrenzt die Verschwenkbewegung durch Anlage an den äußeren Enden des Schlitzes 51, wie dies in den Figuren 7 und 10 gezeigt ist.A second outer panel 35 is secured to the inner end of the tubular beak portion 15 of the boom assembly 12 and pivotally coupled to the pivot axis 31 by a side edge. According to the operation of a swing door hinge thus the near-covering portion 15 of the boom assembly 12 from the position according to FIGS. 3 to 5 seen from above both to the right ( FIGS. 6 to 8 ) as well as to the left ( FIGS. 9 to 11 ) are pivoted or bent. This displacement movement is thereby limited in both directions to the same extent that on the outer part 14 'of the outer portion 14 a rigid stop member 50 is fixed, which is symmetrical at unverwngebennem section 15 to its longitudinal axis, approximately V-shaped cutout or slot 51st in which a stopper pin 52 engages, extending radially outwardly on the beater-near portion. 15 is attached. This stop pin limits the pivoting movement by abutment against the outer ends of the slot 51, as shown in the FIGS. 7 and 10 is shown.

An der ersten Außenplatte 33 des Doppelgelenks ist mittig ein Lagerbock 37 befestigt., der sich in Richtung auf den besennahen Abschnitt 15 durch Mittelöffnungen in einer Zwischenplatte 34 und der zweiten Außenplatte 35 des Doppelgelenks 30 erstreckt. Am Lagerbock 37 ist über eine sich parallel zu den Schwenkachsen 31 und 32 des Doppelgelenks 30 erstreckende Schwenkachse 37 ein Anschlussteil 39 schwenkbar befest.igt, an dem ein sich koaxial zur Längsachse des besennahen Abschnitts 15 der Auslegeranordnung 12 erstreckender Stab 40 befestigt ist. Dieser Stab erstreckt sich verschiebbar durch einen aus elastisch verformbaren Kunststoffelementen bestehenden Federblock 45, der sich am inneren Ende über eine Halteplatte 42 und einen zylindrischen Stützabschnitt 41 an der fest am inneren Ende des besennahen Abschnitts 15 befestigten Flanschplatte abstützt, an der die zweite Außenplatte 35 des Doppelgelenks 30 befestigt ist. Auf dem äußeren Ende des Federblocks 45 stützen sich am Stab 40 angebrachte Kontermuttern 46 ab, zwischen denen und dem Federblock 45 sich eine Unterlegscheibe befindet.On the first outer plate 33 of the double joint, a bearing block 37 is fixed centrally, which extends in the direction of the leaklike portion 15 through central openings in an intermediate plate 34 and the second outer plate 35 of the double joint 30. On the bearing block 37 is via a parallel to the pivot axes 31 and 32 of the double joint 30 extending pivot axis 37, a connection part 39 pivotally fastened.igt to which a coaxially to the longitudinal axis of the broom-near portion 15 of the boom assembly 12 extending rod 40 is attached. This rod extends slidably by a spring block 45 consisting of elastically deformable plastic elements, which is supported at the inner end by a retaining plate 42 and a cylindrical support portion 41 fixed to the inner end of the bennennahen portion 15 flange plate on which the second outer plate 35 of Double joint 30 is attached. On the outer end of the spring block 45 are supported on the rod 40 mounted locknuts 46, between which and the spring block 45 is a washer.

Kommt es infolge des Anfahrens eines Hindernisses durch den Kehrbesen 10 zu dem in den Figuren 6 bis 8 und den Figuren 9 bis 11 gezeigten Abknicken des besennahen Abschnittes 15 der Auslegeranordnung 12, so verändert die Schwenkachse 38 wegen ihrer Verbindung mit der sich beim Abknicken nicht verlagernden, fest am äußeren Abschnitt 14, 14' befestigten ersten Außenplatte 33 des Doppelgelenks 30 zu einem Zusammendrücken des Federblocks 45, weil sich infolge Verschwenkung des besennahen Abschnitts 15 um die Schwenkachse 31 oder die Schwenkachse 32 des Doppelgelenks 30 das äußere Ende des unverformten Federblocks 45 von der sich nicht verlagernden Schwenkachse 38 vergrößert. Infolge dessen bewirken die unverlagerbar am Stab 40 befestigten Kontermuttern 46 ein Zusammendrücken des Federblocks 45, d.,h., es wird eine Federkraft aufgebaut, die der Schwenk- oder Abknickbewegung des besennahen Abschnitts 15 der Auslegeranordnung entgegenwirkt. Dadurch erfolgt nicht nur eine wirksame Dämpfung der Verlagerungsbewegung, wodurch die Bedienungsperson ausreichend Zeit gewinnt, um die Kehrmaschine vor einer Beschädigung der Auslegeranordnung 12 und/oder deren Aufhängung anzuhalten, sondern darüber hinaus bewirkt diese Federkraft auch eine Rückstellung des Doppelgelenks in seine Ausgangslage (Figuren 3 bis 5), wenn die auf den Kehrbesen wirkende Kraft des Hindernisses weggefallen ist.It comes as a result of the start of an obstacle through the broom 10 to the in the FIGS. 6 to 8 and the FIGS. 9 to 11 shown kinking of broom-near portion 15 of the boom assembly 12, so changes the pivot axis 38 because of their connection with the non-displacing at kinking, firmly attached to the outer portion 14, 14 'first outer plate 33 of the double joint 30 to a compression of the spring block 45, because as a result of pivoting of the near-bed portion 15 about the pivot axis 31 or the pivot axis 32 of the double joint 30, the outer end of the undeformed spring block 45 is enlarged by the non-displacing pivot axis 38. As a result, the lock nuts 46 fixed to the rod 40 cause the spring block 45 to be compressed, i.e., a spring force is created which counteracts the pivoting or kinking movement of the bed near section 15 of the boom assembly. As a result, not only does an effective damping of the displacement movement, whereby the operator gains sufficient time to stop the sweeper from damaging the boom assembly 12 and / or its suspension, but also causes this spring force also a provision of the double joint in its initial position ( FIGS. 3 to 5 ) when the force of the obstacle acting on the broom has disappeared.

Claims (7)

Kehrmaschine mit mindestens einem drehend angetriebenen Kehrbesen (10), der am vorderen Ende einer Auslegeranordnung (12) gehaltert ist, die um eine sich im Wesentlichen senkrecht zum zu reinigenden Boden erstreckende Schwenkachse schwenkbar in einem vorderen Mittelbereich des Rahmens (4) der Kehrmaschine gehaltert ist, wobei die Auslegeranordnung (12) einen rahmennahen Abschnitt. (13, 13', 14, 14') und einen besennahen Abschnitt (15) aufweist, die gegen Federkraft relativ zueinander verschwenkbar sind, dadurch gekennzeichnet, dass die beiden Abschnitte (13, 13', 14, 14'; 15) über ein entsprechend einem Pendeltürband ausgebildetes, federbelastetes Doppelgelenk (30) miteinander verbunden sind, das um zur Schwenkachse im Wesentlichen parallele Achsen (31, 32) schwenkbar ist, so dass der besennahe Abschnitt (15) in zwei Richtungen aus seiner normalen Betriebsstellung verschwenkbar ist.A sweeping machine comprising at least one rotary driven broom (10) supported on the forward end of a boom assembly (12) pivotally supported about a pivot axis extending substantially perpendicular to the floor to be cleaned in a forward center region of the frame (4) of the sweeper wherein the boom assembly (12) comprises a frame-proximate portion. (13, 13 ', 14, 14') and a bennennahen portion (15) which are pivotable relative to each other against spring force, characterized in that the two sections (13, 13 ', 14, 14', 15) via a corresponding to a swing door hinge formed, spring-loaded double joint (30) are interconnected, which is pivotable about axes substantially parallel to the pivot axis (31, 32), so that the besennahe section (15) is pivotable in two directions from its normal operating position. Kehrmaschine nach Anspruch 1, dadurch gekennzeichnet, dass die erste Außenplatte (33) des Doppelgelenks (30) fest mit dem rahmennahen Abschnitt (13, 13', 14, 14') und seine zweite Außenplatte (35) fest mit dem besennahen Abschnitt (15) verbunden ist und dass die erste Außenplatte (33) über eine Schwenkverbindung (37, 38, 39) mit der die Federkraft erzeugenden, innerhalb des vorzugsweise rohrförmigen besennahen Abschnitts (15) der Auslegeranordnung (12) vorgesehenen Federanordnung (45) verbunden ist.Sweeper according to claim 1, characterized in that the first outer plate (33) of the double joint (30) fixed to the frame-proximate portion (13, 13 ', 14, 14') and its second outer plate (35) fixed to the broom-near portion (15 ) and that the first outer plate (33) via a pivotal connection (37, 38, 39) with the spring force generating, within the preferably tubular bennennahen portion (15) of the boom assembly (12) provided spring assembly (45) is connected. Kehrmaschine nach Anspruch 2, dadurch gekennzeichnet, dass die Federanordnung (45) beim Verschwenken des besennahen Abschnitts (15) der Auslegeranordnung (12) relativ zu deren rahmennahen Abschnitt (13, 13', 14, 14') zusammengedrückt wird.Sweeper according to claim 2, characterized in that the spring arrangement (45) during pivoting of the bare-close portion (15) of the boom assembly (12) relative to its frame-proximal portion (13, 13 ', 14, 14') is compressed. Kehrmaschine nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der rahmennahe Abschnitt (13, 13', 14, 14') der Auslegeranordnung (12) einen inneren Abschnitt (13, 13') und einen äußeren Abschnitt (14, 14') aufweist, die gegen Federkraft verschwenkbar miteinander verbunden sind, wobei am äußeren Abschnitt (14, 14') das Doppelgelenk (30) angebracht ist und der innere Abschnitt (13, 13') gesteuert um seine Anlenkung am Maschinenrahmen (4) verschwenkbar ist.Sweeper according to one of claims 1 to 3, characterized in that the frame-near portion (13, 13 ', 14, 14') of the boom assembly (12) has an inner portion (13, 13 ') and an outer portion (14, 14' ), which are pivotally connected to each other against spring force, wherein at the outer portion (14, 14 ') the double joint (30) is mounted and the inner portion (13, 13') controlled by its articulation on the machine frame (4) is pivotable. Kehrmaschine nach einem der Ansprüche 1 bis 4, gekennzeichnet durch eine Anschlaganordnung (50, 52) zur Begrenzung der Verschwenkung des besennahen Abschnitts (15) der Auslegeranordnung (12) relativ zu deren rahmennahen Abschnitt 13, 13', 14, 14').Sweeper according to one of claims 1 to 4, characterized by a stop arrangement (50, 52) for limiting the pivoting of the bennennahen portion (15) of the boom assembly (12) relative to the frame-proximal portion 13, 13 ', 14, 14'). Kehrmaschine nach Anspruch 5, dadurch gekennzeichnet, dass die Anschlaganordnung (50, 52) einen Anschlagstift (52), der an einem der Abschnitte (13, 13', 14, 14'; 15) der Auslegeranordnung (12) sich radial erstreckend angebracht ist, und eine Anschlagplatte (50) aufweist, die am anderen der Abschnitte befestigt ist und die einen Aufnahmeschlitz (51) für den Anschlagstift (52) aufweist.Sweeper according to Claim 5, characterized in that the stop arrangement (50, 52) has a stop pin (52) mounted radially on one of the sections (13, 13 ', 14, 14', 15) of the boom assembly (12) and a stopper plate (50) attached to the other of the sections and having a receiving slot (51) for the stop pin (52). Kehrmaschine nach Anspruch 6, dadurch gekennzeichnet, dass der Aufnahmeschlitz (51) symmetrisch zur Längsachse des besennahen Abschnitts (15) in der normalen Betriebsstellung ist.Sweeper according to claim 6, characterized in that the receiving slot (51) is symmetrical to the longitudinal axis of the bennennahen portion (15) in the normal operating position.
EP07103692A 2007-03-07 2007-03-07 Road sweeper Not-in-force EP1967653B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ES07103692T ES2331857T3 (en) 2007-03-07 2007-03-07 CHOOSE MECHANICAL.
EP07103692A EP1967653B1 (en) 2007-03-07 2007-03-07 Road sweeper
DE502007001538T DE502007001538D1 (en) 2007-03-07 2007-03-07 sweeper
AT07103692T ATE443184T1 (en) 2007-03-07 2007-03-07 SWEEPER

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EP1967653B1 EP1967653B1 (en) 2009-09-16

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EP3192422A3 (en) * 2016-01-18 2017-07-26 Hako GmbH Floor cleaning machine
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CN108951491A (en) * 2018-07-28 2018-12-07 安徽南博机器人有限公司 A kind of floor-cleaning machine disc brush regulating mechanism
CN109914309A (en) * 2019-04-12 2019-06-21 扬州盛达特种车有限公司 A kind of sweeping machine Adaptive Attitude holding meanss
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CN114214991A (en) * 2021-12-22 2022-03-22 佛山市雅福科技有限公司 Road cleaning equipment that absorbs water

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Publication number Priority date Publication date Assignee Title
US9045872B2 (en) 2009-03-16 2015-06-02 Alfred Kaercher Gmbh & Co. Kg Exchangeable sweeping brush device and sweeper having such a sweeping brush device
US8806704B2 (en) 2009-03-17 2014-08-19 Alfred Kaercher Gmbh & Co. Kg Automotive sweeper
DE102013220147A1 (en) * 2013-10-04 2015-04-09 Hako Gmbh Floor cleaning machine with side brush
DE102013220147B4 (en) * 2013-10-04 2015-09-03 Hako Gmbh Floor cleaning machine with side brush
EP3192422A3 (en) * 2016-01-18 2017-07-26 Hako GmbH Floor cleaning machine
US10701858B2 (en) 2017-12-12 2020-07-07 Industrial Technology Research Institute Mobile vehicle, ground treating equipment and orientation adjusting method thereof
WO2019211397A1 (en) 2018-05-04 2019-11-07 Alfred Kärcher SE & Co. KG Equipment support apparatus for a vehicle, and vehicle
DE102018110701A1 (en) * 2018-05-04 2019-11-07 Alfred Kärcher SE & Co. KG Device carrier device for a vehicle and vehicle
CN112118727A (en) * 2018-05-04 2020-12-22 阿尔弗雷德·卡赫欧洲两合公司 Appliance carrying device for vehicle and vehicle
CN108677835A (en) * 2018-07-10 2018-10-19 北京京环装备设计研究院有限公司 Sweep device and vehicle with it
CN108951491A (en) * 2018-07-28 2018-12-07 安徽南博机器人有限公司 A kind of floor-cleaning machine disc brush regulating mechanism
CN109914309A (en) * 2019-04-12 2019-06-21 扬州盛达特种车有限公司 A kind of sweeping machine Adaptive Attitude holding meanss
CN114214991A (en) * 2021-12-22 2022-03-22 佛山市雅福科技有限公司 Road cleaning equipment that absorbs water
CN114214991B (en) * 2021-12-22 2024-05-28 佛山市雅福科技有限公司 Road cleaning equipment that absorbs water

Also Published As

Publication number Publication date
EP1967653B1 (en) 2009-09-16
DE502007001538D1 (en) 2009-10-29
ATE443184T1 (en) 2009-10-15
ES2331857T3 (en) 2010-01-18

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