EP1805370B1 - Support for the suspension of a roller broom on a sweeping vehicle - Google Patents

Support for the suspension of a roller broom on a sweeping vehicle Download PDF

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Publication number
EP1805370B1
EP1805370B1 EP05800668A EP05800668A EP1805370B1 EP 1805370 B1 EP1805370 B1 EP 1805370B1 EP 05800668 A EP05800668 A EP 05800668A EP 05800668 A EP05800668 A EP 05800668A EP 1805370 B1 EP1805370 B1 EP 1805370B1
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EP
European Patent Office
Prior art keywords
broom
support
support device
frame
blocking member
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Not-in-force
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EP05800668A
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German (de)
French (fr)
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EP1805370A1 (en
Inventor
Lars Sandberg
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Schmidt Holding GmbH
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Schmidt Holding GmbH
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Publication of EP1805370A1 publication Critical patent/EP1805370A1/en
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Publication of EP1805370B1 publication Critical patent/EP1805370B1/en
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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
    • E01H1/056—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt with driven brushes having horizontal axes
    • 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
    • E01H5/00—Removing snow or ice from roads or like surfaces; Grading or roughening snow or ice
    • E01H5/04—Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material
    • E01H5/08—Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material dislodging essentially by driven elements
    • E01H5/09—Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material dislodging essentially by driven elements the elements being rotary or moving along a closed circular path, e.g. rotary cutter, digging wheels
    • E01H5/092—Brushing elements

Definitions

  • the present invention relates to a support device for the suspension of a roll broom on a sweeping vehicle, comprising a on the sweeper about a vertical pivot axis rotatably mounted rotary carrier, a suspended on the rotary carrier via a lifting drive comprehensive lifting device suspended support member and one on the support member to a horizontal Floating broom frame mounted transversely to the axis of rotation of the roll broom.
  • Such support devices are known in practice. Sweepers in which the roller brushes are suspended by means of appropriate support devices, for example, in the context of the so-called. Black clearance at airports used, in which it depends on the most complete removal of snow from traffic areas.
  • the pendulum suspension of the roll broom compensated on the one hand local variations in the lateral inclination of the surface to be cleaned and on the other hand, a lateral inclination of the sweeping vehicle, for example when cornering.
  • the pendulum position of the broom frame is biased by means of suitable spring elements (eg rubber springs or gas springs) into a zero position.
  • a similar support device is from the EP-A-296 563 known.
  • leveling is important because an otherwise common one-sided snow load in practice (in particular due to deposited on the broom cover snow dust) leads to that The roller brush grinds on one side during transport.
  • the roller brush without such leveling of the sweeping unit would also grind unilaterally during acceleration and deceleration of the sweeping vehicle.
  • the US 2004/0040103 A1 discloses a support device for the suspension of a roll broom on a sweeping vehicle, which differs from the introductory set forth generic prior art in that no stroke device comprising a lifting drive is provided here. In the absence of a possibility to raise the support member, the above-mentioned problem is not present here.
  • the US-A-2978720 shows a support device for the suspension of a roll broom with hydraulic cylinders for tilting the broom frame.
  • a locking member is provided in a support device of the generic type in the area of the pendulum bearing of the broom frame, the first, the pendulum movement of the broom frame releasing and a second, the pendulum movement of the broom frame in its level position blocking position can take and on which the lifting drive of the lifting device engages such that the locking member occupies its second position when activated lifting drive.
  • a characteristic aspect of the present invention is thus that the lifting drive of the lifting device acts on the locking member and upon activation of the lifting drive to lift the broom unit, the locking member is forcibly actuated, namely this from its first, oscillating broom frame enabling position in its second, the Pendulum movement in level position of the broom frame locking position brings. On the way from its first to its second position, the locking member brings the broom frame in its leveled position.
  • the lifting drive deactivated during the sweeping operation (eg by a hydraulic lifting cylinder connected in floating position) so that the roller brushes can follow by vertical compensating movements of the surface to be cleaned, so are also different side slopes of the surface to be cleaned and / or different side slopes of the Sweeper compensating pendulum movements of the roll broom possible.
  • the broom unit can swing freely and without any bias in the floating position determined by the first position of the locking member. In this way it is achieved that even with a substantial lateral tilt of the sweeping vehicle rests in particular during cornering with increased speed of the roller brushes over its entire length with the same bearing force on the surface to be cleaned.
  • the locking member is pivotally mounted about an axis parallel to the axis of rotation of the roll broom extending axis, and although particularly preferred on the broom frame.
  • the point of application of the lifting drive and the articulated linkage of the locking member may be arranged on the broom frame, in particular on different sides of the broom frame.
  • Such a design is characterized by a particularly high functionality.
  • the locking member limited in its first position as part of a stop means the pendulum movement of the brush frame to a predetermined range. Because by such a double function the locking member comes from the support device according to the invention with a minimum of components. In particular, in this case, it is particularly advantageous if shock-absorbing buffer elements are arranged on the blocking member, which effect at least towards the end of the permissible pendulum motion.
  • the locking member is designed as a pair of cheeks having bracket which engages around the hinge connection between the support member and the brush frame.
  • the support member adjacent to its articulated connection with the broom frame in each case a stop for each of the two cheeks of the clip.
  • the lifting device comprises a Lenkerparallelogramm.
  • the link parallelogram comprises two double links, the pairs of handlebars of the two double links each receive the support member and the rotary carrier between them.
  • the lifting drive can be arranged in this case between the pairs of handlebars of the two double link, whereby he is accommodated particularly protected.
  • a corresponding arrangement of the lifting drive between the rotary carrier and the support member is also advantageous if the Lenkerparallelogramm the lifting device does not include double link.
  • the support device 1 shown in the drawing for the suspension of a roll broom 2 on a sweeping vehicle comprises a rotary support 3, a lifting device 4, a support member 5 and a broom frame 6.
  • the rotary support 3 is rotatably mounted on the sweeper about a vertical pivot axis 7.
  • the lifting device comprises a Lenkerparallelogramm 8 with an upper double link 9 and a lower double link 10.
  • the pivotally connected in a known manner with the rotary carrier 3 and the support member 5 link pairs each of the two double links 9 and 10 take the support member 5 and the rotary support 3 between them on.
  • the two links 11 of the lower double link 10 are connected by means of two connecting pieces 12 and 13 rigidly together.
  • the broom frame 6 On the support member 5 is the broom frame 6, which is designed as a square tube and on which the roller brush 2 rotatable in such a known manner about its longitudinal axis L. is stored, suspended.
  • the suspension takes place via a pendulum bearing 14 in the form of a pivot joint 15 which connects the broom frame 6 with the support member 5 to the horizontal, transversely to the axis of rotation L of the roll broom 2 extending axis 16 pendulum.
  • a locking member 17 in the form of a clamp 18 is provided, which comprises two cheeks 19 and 20, two interconnecting connecting pieces 21 and 22 and two stiffening plates 23 and 24.
  • the bracket 18 engages around the pivot joint 15 by the two cheeks 19 and 20 are arranged on different sides of the pivot joint.
  • At the front connector 21 engages - via a ball head - a lifting cylinder 25, which forms the lifting device 4 associated lifting drive 26 and the other, upper end - again via a ball - is hinged to the rotary support 3.
  • the bracket 18 is pivotally mounted by means of the two welded to the brush frame 6 bearing plates 27 on the broom frame 6 about the parallel to the axis of rotation L of the roll broom 2 extending axis 28. It can thereby take a lowered first, the pendulum movement of the broom frame 6 releasing position and a raised second, the broom frame leveling and blocking the pendulum movement of the level broom frame blocking position.
  • the pendulum movement of the brush frame 6 is locked in its level position; at the beginning of lifting the broom unit
  • the clip 18 is brought from its first position to its second position, thereby leveling the broom unit.
  • Your lowered first position the bracket 18, in contrast, occupy when the hydraulic cylinder is switched to its floating position in which the broom unit uneven ground bumps and / or different compression of the sweeper can follow by appropriate up and down movements of the support member.
  • the bracket 18 In this first position of the bracket 18, the broom unit within a predetermined angular range unhindered and without any bias perform pendulum movements about the pivot axis 16.
  • two buffer elements 31 and 32 designed as rubber bumps are provided on both cheeks 19 and 20 of the clip 18, which are attached to a corresponding carrier 33 at the top and bottom. If the clamp 18 assumes its first position, then the two lower buffer elements 32 rest on top of the broom frame 6, wherein between the cheeks 19, 20 and the top of the broom frame 6 a slight, a compression of the lower buffer elements 32 enabling game exists; between the cams 29 of the cheeks 19 and 20 and the stop plate 30 is - in the level position of the broom unit - both sides a game.
  • the bracket 18 in its first position also forms part of a pendulum movement of the broom frame 6 limiting stop device.
  • the broom unit suspended from the illustrated carrying device can not only freely perform pendulum movements about the pivot axis 16. Even bumps following up and down movements of the brush unit are compared with the prior art, within a predetermined range of fluctuation easier. Because not every evasive movement of the broom unit in the vertical direction leads to a change in length of the lifting cylinder 25 and thus to a the rapid evasion obstructing displacement of hydraulic fluid; Rather, by the play of the cheeks 19 and 20 of the bracket 18 between the stop plate 30 on the one hand and the broom frame 6 on the other hand, the broom frame together with the support member 5 within a predetermined fluctuation range to perform movements in the vertical direction, without causing a change in the length of the lifting cylinder 25th leads. This is particularly favorable for an excellent cleaning result on surfaces with relatively short flat bumps.

Description

Die vorliegende Erfindung betrifft eine Tragvorrichtung für die Aufhängung eines Walzenbesens an einem Kehrfahrzeug, umfassend einen an dem Kehrfahrzeug um eine vertikale Schwenkachse drehbar gelagerten Drehträger, ein an dem Drehträger über eine einen Hubantrieb umfassende Hubeinrichtung aufgehängtes Tragteil und einen an dem Tragteil um eine horizontale, sich quer zur Rotationsachse des Walzenbesens erstreckende Achse pendelbar gelagerten Besenrahmen.The present invention relates to a support device for the suspension of a roll broom on a sweeping vehicle, comprising a on the sweeper about a vertical pivot axis rotatably mounted rotary carrier, a suspended on the rotary carrier via a lifting drive comprehensive lifting device suspended support member and one on the support member to a horizontal Floating broom frame mounted transversely to the axis of rotation of the roll broom.

Derartige Tragvorrichtungen sind aus der Praxis bekannt. Kehrfahrzeuge, bei denen die Walzenbesen mittels entsprechender Tragvorrichtungen aufgehängt sind, kommen beispielsweise im Rahmen der sog. Schwarzräumung auf Flughäfen zum Einsatz, bei der es auf das möglichst restlose Entfernen von Schnee von Verkehrsflächen ankommt. Die pendelbare Aufhängung des Walzenbesens kompensiert dabei einerseits örtliche Schwankungen der Seitenneigung der zu reinigenden Oberfläche und andererseits eine Seitenneigung des Kehrfahrzeuges beispielsweise bei Kurvenfahrt. Bei bekannten gattungsgemäßen Tragvorrichtungen wird, um die in Transportfahrt des Kehrfahrzeuges angehobene Beseneinheit (d.i. der Besenrahmen samt dem daran aufgehängten Walzenbesen) aktiv zu nivellieren, die Pendelstellung des Besenrahmens mittels geeigneter Federelemente (z.B. Gummifedern oder Gasdruckfedern) in eine Nullstellung vorgespannt. Eine ähnliche Tragvorrichtung ist aus der EP-A-296563 bekannt geworden. Ein solches Nivellieren ist deshalb wichtig, weil eine sonst in der Praxis häufig vorkommende einseitige Schneelast (insbesondere durch auf der Besenabdeckung abgelagerten Schneestaub) dazu führt, daß der Walzenbesen während der Transportfahrt einseitig schleift. Bei solchen Kehrfahrzeugen, bei denen der Walzenbesen während der Transportfahrt in Längsrichtung des Kehrfahrzeugs gestellt wird, würde der Walzenbesen ohne eine solche Nivellierung der Beseneinheit auch beim Beschleunigen und Abbremsen des Kehrfahrzeuges einseitig schleifen.Such support devices are known in practice. Sweepers in which the roller brushes are suspended by means of appropriate support devices, for example, in the context of the so-called. Black clearance at airports used, in which it depends on the most complete removal of snow from traffic areas. The pendulum suspension of the roll broom compensated on the one hand local variations in the lateral inclination of the surface to be cleaned and on the other hand, a lateral inclination of the sweeping vehicle, for example when cornering. In known generic support devices, in order to actively level the broom unit raised in transport travel of the sweeper vehicle (ie the brush frame including the roller brush), the pendulum position of the broom frame is biased by means of suitable spring elements (eg rubber springs or gas springs) into a zero position. A similar support device is from the EP-A-296 563 known. Such leveling is important because an otherwise common one-sided snow load in practice (in particular due to deposited on the broom cover snow dust) leads to that The roller brush grinds on one side during transport. In such sweeping vehicles in which the roller brush is placed in the longitudinal direction of the sweeping vehicle during transport, the roller brush without such leveling of the sweeping unit would also grind unilaterally during acceleration and deceleration of the sweeping vehicle.

Die US 2004/0040103 A1 offenbart eine Tragvorrichtung für die Aufhängung eines Walzenbesens an einem Kehrfahrzeug, die sich von dem einleitend dargelegten, gattungsbildenden Stand der Technik dadurch unterscheidet, daß hier keine einen Hubantrieb umfassende Hubeinrichtung vorgesehen ist. In Ermangelung einer Möglichkeit, das Tragteil anzuheben, liegt die vorstehend angesprochene Problematik hier nicht vor.The US 2004/0040103 A1 discloses a support device for the suspension of a roll broom on a sweeping vehicle, which differs from the introductory set forth generic prior art in that no stroke device comprising a lifting drive is provided here. In the absence of a possibility to raise the support member, the above-mentioned problem is not present here.

Der US 4643261 A ist eine Tragvorrichtung für die Aufhängung eines Walzenbesens an einem Kehrfahrzeug entnehmbar, die sich von dem einleitend dargelegten, gattungsbildenden Stand der Technik dadurch unterscheidet, daß hier der Besenrahmen an dem Tragteil nicht um eine horizontale, sich quer zur Rotationsachse des Walzenbesens erstreckende Achse pendelbar gelagert ist. In Ermangelung einer solchen Pendelbarkeit liegt auch hier die vorstehend im Zusammenhang mit gattungsgemäßen Tragvorrichtungen angesprochene Problematik nicht vor.Of the US 4643261 A a support device for the suspension of a roll broom on a sweeping vehicle can be removed, which differs from the introductory, generic state of the art in that here the broom frame on the support member is not mounted around a horizontal, transversely to the axis of rotation of the roll broom extending axis pendulum , In the absence of such commutability, the problem addressed above in connection with generic carrying devices is also not present here.

Die US-A-2978720 zeigt eine Tragvorrichtung für die Aufhängung eines Walzenbesens mit hydraulischen zylindern zum Neigen des Besenrahmens.The US-A-2978720 shows a support device for the suspension of a roll broom with hydraulic cylinders for tilting the broom frame.

Bei bekannten Kehrfahrzeugen mit gattungsgemäß ausgeführten Tragvorrichtungen für den Walzenbesen zeigt sich bei verschiedenen Einsatzbedingungen (z.B. bei Kurvenfahrt mit einer einen bestimmten Wert überschreitenden Fahrgeschwindigkeit) ein unbefriedigendes Reinigungsergebnis. Diesem Mißstand abzuhelfen ist die Aufgabe der vorliegenden Erfindung.In known sweepers with generically designed support devices for the roller brush shows at different operating conditions (eg when cornering with a certain value exceeding driving speed) an unsatisfactory cleaning result. To remedy this malady is the object of the present invention.

Gelöst wird diese Aufgabenstellung gemäß der vorliegenden Erfindung, indem bei einer Tragvorrichtung der gattungsgemäßen Art im Bereich der Pendellagerung des Besenrahmens ein Sperrglied vorgesehen ist, das eine erste, die Pendelbewegung des Besenrahmens freigebende und eine zweite, die Pendelbewegung des Besenrahmens in dessen nivellierter Lage sperrende Stellung einnehmen kann und an dem der Hubantrieb der Hubeinrichtung dergestalt angreift, daß das Sperrglied bei aktiviertem Hubantrieb seine zweite Stellung einnimmt. Ein charakteristischer Gesichtspunkt der vorliegenden Erfindung ist somit, daß der Hubantrieb der Hubeinrichtung an dem Sperrglied angreift und beim Aktivieren des Hubantriebs, um die Beseneinheit anzuheben, das Sperrglied zwangsläufig betätigt, nämlich dieses aus seiner ersten, Pendelbewegungen des Besenrahmens ermöglichenden Stellung in seine zweite, die Pendelbewegung bei nivellierter Lage des Besenrahmens sperrende Stellung bringt. Auf dem Weg von seiner ersten in seine zweite Stellung bringt das Sperrglied dabei den Besenrahmen in seine nivellierte Lage. Ist der Hubantrieb indessen während des Kehreinsatzes deaktiviert (z.B. durch einen in Schwimmstellung geschalteten hydraulischen Hubzylinder), so daß der Walzenbesen durch vertikale Ausgleichsbewegungen der zu reinigenden Oberfläche folgen kann, so sind ohne weiteres auch unterschiedliche Seitenneigungen der zu reinigenden Oberfläche und/oder unterschiedliche Seitenneigungen des Kehrfahrzeuges ausgleichende Pendelbewegungen des Walzenbesens möglich. Besonders vorteilhaft wirkt sich dabei aus, daß die Beseneinheit in der durch die erste Stellung des Sperrgliedes bestimmten Schwimmstellung frei und ohne jegliche Vorspannung pendeln kann. Auf diese Weise wird erreicht, daß auch bei einer substantiellen Seitenneigung des Kehrfahrzeuges insbesondere während einer Kurvenfahrt mit erhöhter Geschwindigkeit der Walzenbesen über seine gesamte Länge mit der gleichen Auflagekraft auf der zu reinigenden Oberfläche aufliegt. Dies ist ein maßgeblicher Unterschied gegenüber Kehrmaschinen nach dem Stand der Technik, bei denen infolge der Vorspannung des Besenrahmens in eine - auf das Fahrgestell des Kehrfahrzeuges bezogene - Nullstellung eine Seitenneigung des Kehrfahrzeuges zu einer unterschiedlichen Auflagekraft des Walzenbesens über dessen Länge führt. Ohne aufwendige technische Einrichtungen wird somit erfindungsgemäß der Walzenbesen während des Anhebens der Beseneinheit selbsttätig nivelliert und in dieser Stellung fixiert und in seiner abgesenkten Position freigegeben, d.h. so weit wie möglich von dem Fahrgestell des Kehrfahrzeuges entkoppelt.This object is achieved according to the present invention by a locking member is provided in a support device of the generic type in the area of the pendulum bearing of the broom frame, the first, the pendulum movement of the broom frame releasing and a second, the pendulum movement of the broom frame in its level position blocking position can take and on which the lifting drive of the lifting device engages such that the locking member occupies its second position when activated lifting drive. A characteristic aspect of the present invention is thus that the lifting drive of the lifting device acts on the locking member and upon activation of the lifting drive to lift the broom unit, the locking member is forcibly actuated, namely this from its first, oscillating broom frame enabling position in its second, the Pendulum movement in level position of the broom frame locking position brings. On the way from its first to its second position, the locking member brings the broom frame in its leveled position. If the lifting drive, however, deactivated during the sweeping operation (eg by a hydraulic lifting cylinder connected in floating position) so that the roller brushes can follow by vertical compensating movements of the surface to be cleaned, so are also different side slopes of the surface to be cleaned and / or different side slopes of the Sweeper compensating pendulum movements of the roll broom possible. It has a particularly advantageous effect that the broom unit can swing freely and without any bias in the floating position determined by the first position of the locking member. In this way it is achieved that even with a substantial lateral tilt of the sweeping vehicle rests in particular during cornering with increased speed of the roller brushes over its entire length with the same bearing force on the surface to be cleaned. This is a significant difference compared to sweepers according to the prior art, in which due to the bias of the brush frame in a - related to the chassis of the sweeper - zero position leads a lateral inclination of the sweeping vehicle to a different contact force of the roll broom over its length. Without complex technical facilities, the roller brush is thus automatically leveled according to the invention during lifting of the broom unit and fixed in this position and released in its lowered position, ie decoupled as far as possible from the chassis of the sweeping vehicle.

Wenngleich im Rahmen der vorliegenden Erfindung durchaus auch eine andere Lagerung des Sperrgliedes (insbesondere an dem Tragteil oder dem Besenrahmen) in Betracht kommt, ist gemäß einer ersten bevorzugten Weiterbildung der Erfindung das Sperrglied um eine sich parallel zur Rotationsachse des Walzenbesens erstreckende Achse verschwenkbar gelagert, und zwar besonders bevorzugt an dem Besenrahmen. In dem zuletzt genannten Fall können der Angriffspunkt des Hubantriebs und die gelenkige Anlenkung des Sperrgliedes an dem Besenrahmen insbesondere auf unterschiedlichen Seiten des Besenrahmens angeordnet sein. Eine solche Gestaltung zeichnet sich durch eine besonders hohe Funktionalität aus.Although in the context of the present invention quite another storage of the locking member (in particular on the support member or the brush frame) comes into consideration, according to a first preferred embodiment of the invention, the locking member is pivotally mounted about an axis parallel to the axis of rotation of the roll broom extending axis, and Although particularly preferred on the broom frame. In the latter case, the point of application of the lifting drive and the articulated linkage of the locking member may be arranged on the broom frame, in particular on different sides of the broom frame. Such a design is characterized by a particularly high functionality.

Das gleiche gilt, wenn das Sperrglied in seiner ersten Stellung als Teil einer Anschlageinrichtung die Pendelbewegung des Besenrahmens auf einen vorgegebenen Bereich begrenzt. Denn durch eine solche Doppelfunktion des Sperrgliedes kommt die erfindungsgemäße Tragvorrichtung mit einem Minimum an Bauteilen aus. Namentlich in diesem Falle ist es besonders günstig, wenn an dem Sperrglied stoßdämpfende Pufferelemente angeordnet sind, die zumindest gegen Ende der zulässigen Pendelbewegung zur Wirkung kommen.The same applies if the locking member limited in its first position as part of a stop means the pendulum movement of the brush frame to a predetermined range. Because by such a double function the locking member comes from the support device according to the invention with a minimum of components. In particular, in this case, it is particularly advantageous if shock-absorbing buffer elements are arranged on the blocking member, which effect at least towards the end of the permissible pendulum motion.

Gemäß einer anderen bevorzugten Weiterbildung der Erfindung ist vorgesehen, daß das Sperrglied als zwei Wangen aufweisende Klammer ausgeführt ist, welche die Gelenkverbindung zwischen dem Tragteil und dem Besenrahmen umgreift. Besonders bevorzugt weist dabei das Tragteil benachbart zu seiner gelenkigen Verbindung mit dem Besenrahmen jeweils einen Anschlag für jede der beiden Wangen der Klammer auf.According to another preferred embodiment of the invention it is provided that the locking member is designed as a pair of cheeks having bracket which engages around the hinge connection between the support member and the brush frame. Particularly preferably, the support member adjacent to its articulated connection with the broom frame in each case a stop for each of the two cheeks of the clip.

Zwar läßt sich die vorliegende Erfindung ersichtlich mit unterschiedlich ausgeführten Hubeinrichtungen umsetzen. Gemäß einer besonders bevorzugten Weiterbildung der Erfindung umfaßt allerdings die Hubeinrichtung ein Lenkerparallelogramm. Besonders günstig ist es dabei, wenn das Lenkerparallelogramm zwei Doppellenker umfaßt, wobei die Lenkerpaare der beiden Doppellenker jeweils das Tragteil und den Drehträger zwischen sich aufnehmen. Auch der Hubantrieb kann in diesem Falle zwischen den Lenkerpaaren der beiden Doppellenker angeordnet sein, wodurch er besonders geschützt untergebracht ist. Eine entsprechende Anordnung des Hubantriebs zwischen dem Drehträger und dem Tragteil ist indessen auch dann von Vorteil, wenn das Lenkerparallelogramm der Hubeinrichtung keine Doppellenker umfaßt.Although the present invention can obviously be implemented with differently designed lifting devices. According to a particularly preferred embodiment of the invention, however, the lifting device comprises a Lenkerparallelogramm. It is particularly advantageous if the link parallelogram comprises two double links, the pairs of handlebars of the two double links each receive the support member and the rotary carrier between them. Also, the lifting drive can be arranged in this case between the pairs of handlebars of the two double link, whereby he is accommodated particularly protected. However, a corresponding arrangement of the lifting drive between the rotary carrier and the support member is also advantageous if the Lenkerparallelogramm the lifting device does not include double link.

Im folgenden wird die vorliegende Erfindung anhand eines in der Zeichnung veranschaulichten bevorzugten Ausführungsbeispiels näher erläutert. Dabei zeigt

Fig. 1
in perspektivischer - leicht schematisierter - Ansicht von schräg links-hinten-oben eine Trag- vorrichtung nach der vorliegenden Erfindung bei abgesenkter Beseneinheit,
Fig. 2
in einer Detailansicht von hinten den Bereich der Pendelaufhängung des Besenrahmens der Trag- vorrichtung nach Fig. 1,
Fig. 3
eine Ansicht von schräg links-hinten-oben auf die Tragvorrichtung nach den Fig. 1 und 2 bei angehobener Beseneinheit und
Fig. 4
eine Ansicht von schräg links-vorne-unten auf die Tragvorrichtung nach den Fig. 1 bis 3 eben- falls bei angehobener Beseneinheit.
In the following, the present invention will be explained in more detail with reference to a preferred embodiment illustrated in the drawing. It shows
Fig. 1
in perspective - slightly schematic - view from obliquely left-rear-top a support device according to the present invention with lowered broom unit,
Fig. 2
in a detail view from behind the area of the pendulum suspension of the broom frame of the support device according to Fig. 1 .
Fig. 3
a view from obliquely left-rear-top on the support device according to the Fig. 1 and 2 with raised broom unit and
Fig. 4
a view from obliquely left-front-bottom on the support device according to the Fig. 1 to 3 also with raised broom unit.

Die in der Zeichnung dargestellte Tragvorrichtung 1 für die Aufhängung eines Walzenbesens 2 an einem Kehrfahrzeug umfaßt einen Drehträger 3, eine Hubeinrichtung 4, ein Tragteil 5 und einen Besenrahmen 6. Der Drehträger 3 ist an dem Kehrfahrzeug um eine vertikale Schwenkachse 7 drehbar gelagert. An ihm ist das Tragteil 5 über die Hubeinrichtung 4 anhebbar und absenkbar angelenkt. Hierzu umfaßt die Hubeinrichtung ein Lenkerparallelogramm 8 mit einem oberen Doppellenker 9 und einem unteren Doppellenker 10. Die in bekannter Weise gelenkig mit dem Drehträger 3 und dem Tragteil 5 verbundenen Lenkerpaare jedes der beiden Doppellenker 9 und 10 nehmen das Tragteil 5 und den Drehträger 3 zwischen sich auf. Die beiden Lenker 11 des unteren Doppellenkers 10 sind mittels zweier Verbindungsstücke 12 und 13 starr miteinander verbunden.The support device 1 shown in the drawing for the suspension of a roll broom 2 on a sweeping vehicle comprises a rotary support 3, a lifting device 4, a support member 5 and a broom frame 6. The rotary support 3 is rotatably mounted on the sweeper about a vertical pivot axis 7. At him the support member 5 is articulated via the lifting device 4 and lowered lowered. For this purpose, the lifting device comprises a Lenkerparallelogramm 8 with an upper double link 9 and a lower double link 10. The pivotally connected in a known manner with the rotary carrier 3 and the support member 5 link pairs each of the two double links 9 and 10 take the support member 5 and the rotary support 3 between them on. The two links 11 of the lower double link 10 are connected by means of two connecting pieces 12 and 13 rigidly together.

An dem Tragteil 5 ist der Besenrahmen 6, der als Vierkantrohr ausgeführt ist und an dem der Walzenbesen 2 in als solches bekannter Weise um seine Längsachse L rotierbar gelagert ist, aufgehängt. Die Aufhängung erfolgt dabei über eine Pendellagerung 14 in Form eines Schwenkgelenks 15, welches den Besenrahmen 6 mit dem Tragteil 5 um die horizontale, sich quer zur Rotationsachse L des Walzenbesens 2 erstreckende Achse 16 pendelbar verbindet.On the support member 5 is the broom frame 6, which is designed as a square tube and on which the roller brush 2 rotatable in such a known manner about its longitudinal axis L. is stored, suspended. The suspension takes place via a pendulum bearing 14 in the form of a pivot joint 15 which connects the broom frame 6 with the support member 5 to the horizontal, transversely to the axis of rotation L of the roll broom 2 extending axis 16 pendulum.

Im Bereich der Pendellagerung 14 ist ein Sperrglied 17 in Form einer Klammer 18 vorgesehen, welche zwei Wangen 19 und 20, zwei diese miteinander verbindende Verbindungsstücke 21 und 22 sowie zwei Aussteifungsplatten 23 und 24 umfaßt. Die Klammer 18 umgreift dabei das Schwenkgelenk 15, indem die beiden Wangen 19 und 20 auf unterschiedlichen Seiten des Schwenkgelenks angeordnet sind. An dem vorderen Verbindungsstück 21 greift - über einen Kugelkopf - ein Hubzylinder 25 an, der den der Hubeinrichtung 4 zugeordneten Hubantrieb 26 bildet und dessen anderes, oberes Ende - wiederum über einen Kugelkopf - an dem Drehträger 3 angeschlagen ist.In the area of the self-aligning bearing 14, a locking member 17 in the form of a clamp 18 is provided, which comprises two cheeks 19 and 20, two interconnecting connecting pieces 21 and 22 and two stiffening plates 23 and 24. The bracket 18 engages around the pivot joint 15 by the two cheeks 19 and 20 are arranged on different sides of the pivot joint. At the front connector 21 engages - via a ball head - a lifting cylinder 25, which forms the lifting device 4 associated lifting drive 26 and the other, upper end - again via a ball - is hinged to the rotary support 3.

Die Klammer 18 ist mittels der beiden an dem Besenrahmen 6 angeschweißten Lagerlaschen 27 an dem Besenrahmen 6 um die sich parallel zur Rotationsachse L des Walzenbesens 2 erstreckende Achse 28 verschwenkbar gelagert. Sie kann dadurch eine abgesenkte erste, die Pendelbewegung des Besenrahmens 6 freigebende Stellung und eine angehobene zweite, den Besenrahmen nivellierende und die Pendelbewegung des nivellierten Besenrahmens sperrende Stellung einnehmen. In der - durch den aktivierten Hubzylinder 25 - angehobenen zweiten Stellung der Klammer 18 liegen Nocken 29 der Wangen 19 und 20 an der Unterseite einer Anschlagplatte 30 an, welche einen Bestandteil des Tragteils 5 bildet. Hierdurch wird die Pendelbewegung des Besenrahmens 6 in dessen nivellierter Lage gesperrt; zu Beginn des Anhebens der Beseneinheit infolge Aktivierung des Hubzylinders 25 wird die Klammer 18 aus ihrer ersten Stellung in ihre zweite Stellung gebracht und dabei die Beseneinheit nivelliert. Ihre abgesenkte erste Stellung kann die Klammer 18 demgegenüber dann einnehmen, wenn der Hydraulikzylinder in seine Schwimmstellung geschaltet ist, in der die Beseneinheit Bodenunebenheiten und/oder unterschiedlichen Einfederungen des Kehrfahrzeuges durch entsprechende Auf- und Abbewegungen des Tragteils ungehindert folgen kann. In dieser ersten Stellung der Klammer 18 kann die Beseneinheit innerhalb eines vorgegebenen Winkelbereichs ungehindert und ohne jegliche Vorspannung Pendelbewegungen um die Schwenkachse 16 ausführen.The bracket 18 is pivotally mounted by means of the two welded to the brush frame 6 bearing plates 27 on the broom frame 6 about the parallel to the axis of rotation L of the roll broom 2 extending axis 28. It can thereby take a lowered first, the pendulum movement of the broom frame 6 releasing position and a raised second, the broom frame leveling and blocking the pendulum movement of the level broom frame blocking position. In the - lifted by the activated lifting cylinder 25 - second position of the clip 18 are cam 29 of the cheeks 19 and 20 at the bottom of a stop plate 30, which forms a part of the support member 5. As a result, the pendulum movement of the brush frame 6 is locked in its level position; at the beginning of lifting the broom unit As a result of activation of the lifting cylinder 25, the clip 18 is brought from its first position to its second position, thereby leveling the broom unit. Your lowered first position, the bracket 18, in contrast, occupy when the hydraulic cylinder is switched to its floating position in which the broom unit uneven ground bumps and / or different compression of the sweeper can follow by appropriate up and down movements of the support member. In this first position of the bracket 18, the broom unit within a predetermined angular range unhindered and without any bias perform pendulum movements about the pivot axis 16.

Um Pendelbewegungen am Ende des zulässigen Bereichs abzufedern, sind an beiden Wangen 19 und 20 der Klammer 18 jeweils zwei als Gummipuffer ausgeführte Pufferelemente 31 und 32 vorgesehen, die oben und unten an einem entsprechenden Träger 33 angebracht sind. Nimmt die Klammer 18 ihre erste Stellung ein, so liegen die beiden unteren Pufferelemente 32 oben auf dem Besenrahmen 6 auf, wobei zwischen den Wangen 19, 20 und der Oberseite des Besenrahmens 6 ein geringes, ein Einfedern der unteren Pufferelemente 32 ermöglichendes Spiel besteht; auch zwischen den Nocken 29 der Wangen 19 und 20 und der Anschlagplatte 30 besteht - in der nivellierten Lage der Beseneinheit - beidseits ein Spiel. Wird die Beseneinheit aus ihrer nivellierten Lage ausgelenkt, so tritt bei einem vorgegebenen Pendelwinkel dasjenige der beiden oberen Pufferelemente 31, das sich auf der sich anhebenden Seite der Beseneinheit befindet, mit der Unterseite der Anschlagplatte 30 in Kontakt und dämpft die weitere Pendelbewegung, bevor ggfs. bei weiterer Kompression des oberen Pufferelements 31 der dieser Seite zugeordnete Nocken 29 an der Anschlagplatte anschlägt. Auch die beiden unteren Pufferelemente 32 werden in diesem Falle zusammengedrückt, und zwar ggfs. so weit, bis die Unterkanten der Wangen 19 und 20 oben auf dem Besenrahmen 6 anliegen. Insoweit stellt die Klammer 18 in ihrer ersten Stellung auch einen Teil einer die Pendelbewegung des Besenrahmens 6 begrenzenden Anschlageinrichtung dar.In order to cushion pendulum movements at the end of the permissible range, two buffer elements 31 and 32 designed as rubber bumps are provided on both cheeks 19 and 20 of the clip 18, which are attached to a corresponding carrier 33 at the top and bottom. If the clamp 18 assumes its first position, then the two lower buffer elements 32 rest on top of the broom frame 6, wherein between the cheeks 19, 20 and the top of the broom frame 6 a slight, a compression of the lower buffer elements 32 enabling game exists; between the cams 29 of the cheeks 19 and 20 and the stop plate 30 is - in the level position of the broom unit - both sides a game. If the broom unit deflected from its level position, so occurs at a given pendulum angle that of the two upper buffer elements 31, which is located on the lifting side of the broom unit, with the bottom of the stop plate 30 in contact and attenuates the further pendulum motion, if necessary. upon further compression of the upper buffer element 31 the side of this associated cam 29 abuts the stop plate. The two lower buffer elements 32 are compressed in this case, if necessary. So far, until the lower edges of the cheeks 19 and 20 rest on top of the brush frame 6. In that regard, the bracket 18 in its first position also forms part of a pendulum movement of the broom frame 6 limiting stop device.

Lediglich zur Klarstellung wird darauf hingewiesen, daß ein Spiel zwischen den oberen Pufferelementen 31 und der Anschlagplatte 30 in der ersten Stellung der Klammer 18 keinesfalls zwingend erforderlich ist. Vielmehr können in der ersten Stellung der Klammer 18 bei nivellierter Beseneinheit durchaus die beiden oberen Pufferelemente 31 an der Anschlagplatte 30 und die beiden unteren Gummipuffer 32 an dem Besenrahmen 6 anliegen. Auch in diesem Falle ergibt sich noch immer ein maßgeblicher Vorteil der entsprechenden Tragvorrichtung gegenüber dem Stand der Technik, weil die Pufferelemente, verglichen mit den bei bekannten Tragvorrichtungen eingesetzten Federeinheiten, vergleichsweise nachgiebig ausgeführt sein können, nachdem die Lagesicherung der angehobenen Beseneinheit in ihrer nivellierten Lage über das erläuterte gesonderte Sperrglied erfolgt.For clarity only, it should be noted that a play between the upper buffer elements 31 and the stop plate 30 in the first position of the bracket 18 is by no means absolutely necessary. Rather, in the first position of the bracket 18 with level broom unit quite the two upper buffer elements 31 abut against the stop plate 30 and the two lower rubber pads 32 on the broom frame 6. Also in this case, there is still a significant advantage of the corresponding support device over the prior art, because the buffer elements, compared with the spring units used in known support devices, can be made relatively flexible, after the securing position of the raised broom unit in its level position on the explained separate locking member takes place.

Ersichtlich kann die an der dargestellten Tragvorrichtung aufgehängte Beseneinheit nicht nur ungehindert Pendelbewegungen um die Schwenkachse 16 ausführen. Auch Bodenunebenheiten folgende Auf- und Abbewegungen der Beseneinheit werden, verglichen mit dem Stand der Technik, innerhalb eines vorgegebenen Schwankungsbereichs erleichtert. Denn nicht jede Ausweichbewegung der Beseneinheit in vertikaler Richtung führt zu einer Längenveränderung des Hubzylinders 25 und somit zu einer das rasche Ausweichen behindernden Verdrängung von Hydraulikflüssigkeit; vielmehr kann durch das Spiel der Wangen 19 und 20 der Klammer 18 zwischen der Anschlagplatte 30 einerseits und dem Besenrahmen 6 andererseits der Besenrahmen mitsamt dem Tragteil 5 innerhalb einer vorgegebenen Schwankungsbreite Bewegungen in vertikaler Richtung ausführen, ohne daß dies zu einer Veränderung der Länge des Hubzylinders 25 führt. Dies ist insbesondere für ein hervorragendes Reinigungsergebnis auf Oberflächen mit relativ kurzen flachen Bodenunebenheiten günstig.As can be seen, the broom unit suspended from the illustrated carrying device can not only freely perform pendulum movements about the pivot axis 16. Even bumps following up and down movements of the brush unit are compared with the prior art, within a predetermined range of fluctuation easier. Because not every evasive movement of the broom unit in the vertical direction leads to a change in length of the lifting cylinder 25 and thus to a the rapid evasion obstructing displacement of hydraulic fluid; Rather, by the play of the cheeks 19 and 20 of the bracket 18 between the stop plate 30 on the one hand and the broom frame 6 on the other hand, the broom frame together with the support member 5 within a predetermined fluctuation range to perform movements in the vertical direction, without causing a change in the length of the lifting cylinder 25th leads. This is particularly favorable for an excellent cleaning result on surfaces with relatively short flat bumps.

Claims (11)

  1. Support device (1) for the suspension of a roller broom (2) on a sweeper vehicle, comprising a rotary support (3) which is mounted on the sweeper vehicle such that it can be rotated about a vertical pivot axis (7), a support part (5) which is suspended on the rotary support by means of a lifting apparatus (4) comprising a lifting drive (26), and a broom frame (6) which is pendularly mounted on the support part such that it can be swung about a horizontal axis (16) which extends transversely to the axis of rotation (L) of the roller broom,
    characterized
    in that a movably mounted blocking member (17) is provided in the region of the pendular mounting (14) of the broom frame (6), which can take up a first position which allows the pendular movement of the broom frame (6) and a second position which blocks the pendular movement of the broom frame (6) in its levelled position, and on which the lifting drive (26) of the lifting apparatus (4) acts in such a manner that the blocking member (17) takes up its second position when the lifting drive is activated, that is to say when the broom unit is raised.
  2. Support device according to Claim 1,
    characterized
    in that the blocking member (17) is mounted such that it can pivot about an axis (28) which extends parallel to the axis of rotation (L) of the roller broom (2).
  3. Support device according to Claim 1 or Claim 2,
    characterized
    in that the blocking member (17) is flexibly mounted on the broom frame (6).
  4. Support device according to Claim 3,
    characterized
    in that the point of action of the lifting drive (26) and the mounting of the blocking member (17) on the broom frame (6) are arranged on different sides of the broom frame.
  5. Support device according to one of Claims 1 to 4,
    characterized
    in that the blocking member (17) is configured as a clamp (18) having two side parts (19, 20) which grips the pendular mounting (14) between the support part (5) and the broom frame (6).
  6. Support device according to Claim 5,
    characterized
    in that the support part (5) has one stop for each of the two side parts (19, 20) of the clamp (18), which stops are adjacent to the pendular mounting (14) in each case.
  7. Support device according to one of Claims 1 to 6,
    characterized
    in that the blocking member (17), in its first position as part of a stop apparatus, limits the pendular movement of the broom frame (6).
  8. Support device according to Claim 7,
    characterized
    in that shock absorbing buffer elements (31, 32) are arranged on the blocking member (17).
  9. Support device according to one of Claims 1 to 8,
    characterized
    in that the lifting apparatus (4) comprises a link parallelogram (8).
  10. Support device according to Claim 9,
    characterized
    in that the link parallelogram (8) comprises two double link rods (9, 10), wherein the link rod pairs of the two double link rods accommodate the support part (5) and the rotary support (3) between them in each case.
  11. Support device according to one of Claims 1 to 10,
    characterized
    in that the lifting drive (26) is arranged between the rotary support (3) and the support part (5).
EP05800668A 2004-10-30 2005-10-27 Support for the suspension of a roller broom on a sweeping vehicle Not-in-force EP1805370B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004052760A DE102004052760A1 (en) 2004-10-30 2004-10-30 Support device for the suspension of a roll broom on a sweeping vehicle
PCT/EP2005/011523 WO2006048181A1 (en) 2004-10-30 2005-10-27 Support for the suspension of a roller broom on a sweeping vehicle

Publications (2)

Publication Number Publication Date
EP1805370A1 EP1805370A1 (en) 2007-07-11
EP1805370B1 true EP1805370B1 (en) 2009-02-11

Family

ID=35502884

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05800668A Not-in-force EP1805370B1 (en) 2004-10-30 2005-10-27 Support for the suspension of a roller broom on a sweeping vehicle

Country Status (7)

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US (1) US20080109982A1 (en)
EP (1) EP1805370B1 (en)
CA (1) CA2578783A1 (en)
DE (2) DE102004052760A1 (en)
NO (1) NO338205B1 (en)
RU (1) RU2376414C2 (en)
WO (1) WO2006048181A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2937651C (en) * 2014-01-21 2023-11-07 Jason Jeffrey Henderson An apparatus, system and method for mechanical, selective weed control in mature and establishing crops including turfgrasses
DE102014101760A1 (en) 2014-02-12 2015-09-17 Fiedler Maschinenbau Und Technikvertrieb Gmbh Attachment sweeper for a narrow-gauge front implement carrier
RU2683542C1 (en) * 2018-05-16 2019-03-28 Акционерное общество "Коминвест-АКМТ" Sweeping unit and brushing device of municipal road machine
CN109629503B (en) * 2019-01-15 2023-09-08 吉林大学 Multifunctional snow remover for realizing electric door type transmission and control method thereof
WO2020215079A1 (en) * 2019-04-19 2020-10-22 Clark Equipment Company Sweeper implement
CN113026649B (en) * 2021-01-27 2022-05-17 长沙中联重科环境产业有限公司 Snow removing rolling brush and snow removing vehicle with same

Family Cites Families (7)

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Publication number Priority date Publication date Assignee Title
US2978720A (en) * 1958-02-17 1961-04-11 Lull Engineering Co Rotary sweeper or broom
US4643261A (en) * 1983-04-25 1987-02-17 Long George Motor grader with supplementary surface treatment attachment
DE3439506C1 (en) * 1984-10-27 1986-03-27 Ing. Alfred Schmidt Gmbh, 7822 St Blasien snow plow
CH674658A5 (en) * 1987-06-26 1990-06-29 Peter Ag Konrad
DE3932944A1 (en) * 1988-10-06 1990-04-12 Schmidt Alfred Ing Gmbh DEVICE FOR ATTACHING A SNOW PLOW TO A VEHICLE
US6446297B1 (en) * 1999-09-16 2002-09-10 The Toro Company Connecting apparatus for attaching a sweeping implement to a traction vehicle
US7793376B2 (en) * 2002-08-30 2010-09-14 Rush Sr John Conaway Truck mounted rotating broom system

Also Published As

Publication number Publication date
RU2007106035A (en) 2008-10-10
NO20072592L (en) 2007-05-22
US20080109982A1 (en) 2008-05-15
DE502005006623D1 (en) 2009-03-26
WO2006048181A1 (en) 2006-05-11
RU2376414C2 (en) 2009-12-20
NO338205B1 (en) 2016-08-08
EP1805370A1 (en) 2007-07-11
DE102004052760A1 (en) 2006-05-04
CA2578783A1 (en) 2006-05-11

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