EP0814052B1 - Mobile working platform - Google Patents

Mobile working platform Download PDF

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Publication number
EP0814052B1
EP0814052B1 EP97102333A EP97102333A EP0814052B1 EP 0814052 B1 EP0814052 B1 EP 0814052B1 EP 97102333 A EP97102333 A EP 97102333A EP 97102333 A EP97102333 A EP 97102333A EP 0814052 B1 EP0814052 B1 EP 0814052B1
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EP
European Patent Office
Prior art keywords
working platform
axis
mobile working
platform
gear
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.)
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EP97102333A
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German (de)
French (fr)
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EP0814052A1 (en
Inventor
Marius Bartsch
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.)
Palfinger Europe GmbH
Jennissen Gruppe GmbH
Original Assignee
Bison Stematec Maschinenbau und Hubarbeitsbuehnen Produktionsgesellschaft mbH
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
    • B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
    • B66F11/044—Working platforms suspended from booms

Definitions

  • the present invention relates to a mobile aerial work platform with a chassis and a support device for a platform, on which a first slewing ring is arranged, which with its vertical axis is located approximately in the middle of the platform and carries a horizontal bar that can be pivoted about the axis, which offsets a second slewing ring with a Swing tower with a work cage at the top of a boom has, wherein the Schwenkturm about a vertical axis of the second slewing ring is rotatable.
  • Such mobile aerial work platforms correspond to the European one Draft standard prEN 280 from April 1994, as it is from the technical Committee CEN / TC 98 / AG 1 of the European Committee for Standardization was created.
  • the mobile aerial work platforms can be used as Trailers or trained as self-propelled machines be.
  • German patent application DE 1 960 829 A1 describes one Mobile aerial work platform with two slewing rings.
  • the movement of the The slewing rings are operated over two independently acting Drive units controlled separately. With such a Arrangement is supposed to spatially position outside the vehicle can be better achieved.
  • the invention has for its object a one described above To design aerial work platform so that at comparable Length less telescopes are used and that both in the state of the process of the aerial work platform as well as in operation the aerial work platform a better mobility of the aerial work platform itself and more freedom for a flowing past Traffic remains.
  • the invention also uses the known cranking of the Swing tower, compared to comparable aerial work platforms however, may be larger, for example, for the free space to use above the cab and the total length of the working machine To shorten. Connects with the shortening of the total length a change in center of gravity that a short wheelbase has the consequence of what the agility of the aerial work platform in Road traffic benefits. In addition, by shifting the focus the reach of the tower towards the front Driver's cab of the carrier vehicle significantly increased.
  • the opposite movement between the The swing tower and the horizontal beam by a between the two Element-acting gear generated, the opposite Angular velocity between the horizontal bar and the swing tower is about the same size. This ensures that a Exceeding the vehicle contour is largely avoided. In addition, an even weight load of the supports or of the carrier vehicle. In addition, the opposite of horizontal beams and swing tower advantageously the transmission torque is reduced by approx. 50%.
  • the distance between the two axes of rotation can advantageously be balanced with a counterweight, which makes the focus is largely within a narrow support structure that does not hold the vehicle size if possible exceeds.
  • the offset is also dimensioned such that on the one hand when driving above a cab comes to rest and on the other hand the vehicle width does not exceeds.
  • the known support device also used in the invention can if necessary via the platform occupied area are extended, although in the one-sided support is sufficient in most cases.
  • the illustrated embodiment shows a self-driving Aerial work platform 10.
  • a chassis or platform 12 is in the Driving operation supported by a chassis from which wheels 16 are shown.
  • a support device is provided for support during operation with extendable supports 18 available to the note that the supports are usually merely vertically at the four outer corners of the chassis or platform 12 need to be arranged.
  • a vertical axis of rotation 20 is a fixed, i.e. with the Platform 12 connected slewing ring 22 about its vertical axis 20 a horizontal bar 24 is pivotable.
  • the slewing ring 22 can however, also offset from the center of the platform 12 be.
  • a second slewing ring 26 is provided with an axis of rotation 28.
  • a counterweight 30 At the opposite end of the horizontal bar 24 is located a counterweight 30.
  • the second slewing ring 26 carries a swing tower 32, which in the Embodiment shown in a cranked fork 34th transforms.
  • a swing tower 32 At the free end of the fork 34 there is a horizontal one Hinge 36 in which a boom 38 can be swung up and down is stored.
  • the boom 38 can also be telescopic be extendable.
  • Located on the bracket of the boom usually a work basket 40.
  • the self-propelled Tool both in the usual way with the basket 40 to be moved behind the stern as well as in front of the cab 14 to keep the driving length as short as possible while driving.
  • second slewing ring 26 with its structure and mainly here with the boom 38 about the axis 28 and on the other hand the horizontal or balance beam 24 about the axis 20 to an opposite Forced rotation, so that the rotation in the direction of the arrows.
  • the Rotary connection takes place via a gear within the horizontal bar 24, which is not visible in the illustration of the drawing is. It can be any positive, in particular a gear transmission connection or friction connection to a belt or chain link, which is preferred rolls around a fixed, closed circular arc or unwinds.
  • the drive of this simultaneous and opposite Pivotal movement of the swing tower 32 against the Pivotal movement of the horizontal bar 24 can be different Way to be initiated.
  • the axis 20 or the axis 28 can be are driven.
  • a motion coupling is preferred at one of the two ring gears 22 or 26 is fixed and the driven one Part of the fixed on this ring gear Rolls partly over at least one countershaft sprocket. That would be one in the axis 28 initiated rotary movement a pivoting of the Gravity tower 32 with boom 38 as a consequence, as one opposing forced movement of the horizontal bar 24.
  • the opposite The angular velocity of both movements is the same. This can be achieved, for example, by means of a gear, in which the driven second slewing ring 26 with a Gear via a counter pinion with any diameter rolls on an opposite fixed ring gear.
  • the rotary movement can also expediently be carried out via the axis 20 of the first slewing ring 22 can be initiated with a motor.
  • the second slewing ring 26 would then be fixed.
  • FIG. 3 shows, there is even a right-angle deflection the longitudinal extension of the platform 12 is the counterweight 30 within the area of the platform 12, so that for example on the side of the counterweight in this working position traffic can flow freely. This position can for example when working beyond a railing be essential.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Handcart (AREA)
  • Vehicle Body Suspensions (AREA)
  • Types And Forms Of Lifts (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)

Abstract

The platform has a first turntable with its vertical axis (20) approximately concentric on the platform (12) and supports a horizontal beam (24) which pivots around the vertical axis. The horizontal beam supports an axially offset second turntable (26) with an upper carrying chassis. For double motion of the horizontal beam the second turntable is connected via a gear acting between the boom (38) and beam. The gear may be formed via two intermeshing gears between both rotation axes (20,28). The first axis of the first turntable may be driven whilst the axis (28) of the second turntable may be firmly connected to the rotary tower (32).

Description

Die vorliegende Erfindung betrifft eine fahrbare Hubarbeitsbühne mit einem Fahrwerk und einer Stützeinrichtung für eine Plattform, auf der ein erster Drehkranz angeordnet ist, der mit seiner vertikalen Achse etwa mittig auf der Plattform angeordnet ist und einen um die Achse schwenkbaren Horizontalbalken trägt, welcher achsenversetzt einen zweiten Drehkranz mit einem Schwenkturm mit einem Arbeitskorb an der Spitze eines Auslegers aufweist, wobei der Schwenkturm um eine vertikale Achse des zweiten Drehkranzes drehbar ist.The present invention relates to a mobile aerial work platform with a chassis and a support device for a platform, on which a first slewing ring is arranged, which with its vertical axis is located approximately in the middle of the platform and carries a horizontal bar that can be pivoted about the axis, which offsets a second slewing ring with a Swing tower with a work cage at the top of a boom has, wherein the Schwenkturm about a vertical axis of the second slewing ring is rotatable.

Derartige fahrbare Hubarbeitsbühnen entsprechen dem europäischen Normentwurf prEN 280 vom April 1994, wie er vom Technischen Komitee CEN/TC 98/AG 1 des Europäischen Komitees für Normung erstellt wurde. Dabei können die fahrbaren Hubarbeitsbühnen als Anhänger oder als selbstfahrende Arbeitsmaschinen ausgebildet sein.Such mobile aerial work platforms correspond to the European one Draft standard prEN 280 from April 1994, as it is from the technical Committee CEN / TC 98 / AG 1 of the European Committee for Standardization was created. The mobile aerial work platforms can be used as Trailers or trained as self-propelled machines be.

Aus dem Bemühen, die Gesamtlänge der fahrbaren Hubarbeitsbühne kurz und verkehrsfreundlich zu gestalten, kennt der Stand der Technik aufwendige Mehrfachteleskopsysteme sowie eine starke Kröpfung des Schwenkturms, um den Bereich über einem Führerhaus nutzen zu können. Die starke Kröpfung des Schwenkturms führt dazu, daß der Schwenkturm beim Schwenken die Fahrzeugbreite übersteigt und in den Verkehrsbereich hineinragt. Bei der üblichen Anordnung einer vorderen Abstützeinrichtung gleich hinter dem Führerhaus muß die Reichweite der Hubeinrichtung nach vorn aus Standsicherheitsgründen eingeschränkt werden.
Ein weiterer Nachteil des Standes der Technik ist die zumeist generelle Notwendigkeit, teleskopartig über die Breite des Fahrzeugs hinaus verlängerbare oder ausklappbare Abstützeinrichtungen einzusetzen, die ebenfalls im Betrieb verkehrsbehindernd, aber für einen sicheren Betrieb erforderlich sind.From the effort to make the overall length of the mobile aerial work platform short and traffic-friendly, the state of the art knows complex multi-telescope systems and a strong cranking of the slewing tower in order to be able to use the area above a driver's cab. The strong cranking of the swing tower means that when swinging the swing tower exceeds the vehicle width and protrudes into the traffic area. In the usual arrangement of a front support device directly behind the cab, the range of the lifting device to the front must be restricted for reasons of stability.
Another disadvantage of the prior art is the mostly general need to use telescopic support devices that can be extended or folded out across the width of the vehicle and that are also obstructing traffic during operation, but are necessary for safe operation.

Die deutsche Patentanmeldung DE 1 960 829 A1 beschreibt eine fahrbare Hubarbeitbühne mit zwei Drehkränzen. Die Bewegung der Drehkränze wird dabei über zwei unabhängig voneinander wirkenden Antriebseinheiten jeweils separat gesteuert. Mit einer derartigen Anordnung soll eine Position außerhalb des Fahrzeuges räumlich besser erreicht werden können.German patent application DE 1 960 829 A1 describes one Mobile aerial work platform with two slewing rings. The movement of the The slewing rings are operated over two independently acting Drive units controlled separately. With such a Arrangement is supposed to spatially position outside the vehicle can be better achieved.

Der Erfindung liegt die Aufgabe zugrunde, eine eingangs beschriebene Hubarbeitsbühne so zu gestalten, daß bei vergleichbarer Baulänge weniger Teleskope verwendet werden und daß sowohl im Zustand des Verfahrens der Hubarbeitsbühne als auch im Betrieb der Hubarbeitsbühne eine bessere Beweglichkeit der Hubarbeitsbühne selbst und mehr Freiraum für einen vorbeifließenden Verkehr verbleibt.The invention has for its object a one described above To design aerial work platform so that at comparable Length less telescopes are used and that both in the state of the process of the aerial work platform as well as in operation the aerial work platform a better mobility of the aerial work platform itself and more freedom for a flowing past Traffic remains.

Die Aufgabe wird erfindungsgemäß durch die Merkmale des Hauptanspruchs gelöst.The object is achieved by the features of the main claim solved.

Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen dargelegt.Advantageous embodiments of the invention are in the subclaims spelled out.

Auch die Erfindung benutzt die an sich bekannte Kröpfung des Schwenkturms, die gegenüber vergleichbaren Hubarbeitsbühnen allerdings größer ausfallen kann, um den Freiraum beispielsweise über dem Führerhaus zu nutzen und die Gesamtlänge der Arbeitsmaschine zu verkürzen. Mit der Verkürzung der Gesamtlänge verbindet sich eine Schwerpunktveränderung, die einen kurzen Radstand zur Folge hat, was der Wendigkeit der Hubarbeitsbühne im Straßenverkehr zugute kommt. Zudem wird durch die Schwerpunktsverlagerung die Reichweite des Schwenkturms nach vorn über das Führerhaus des Trägerfahrzeugs wesentlich erhöht.The invention also uses the known cranking of the Swing tower, compared to comparable aerial work platforms however, may be larger, for example, for the free space to use above the cab and the total length of the working machine To shorten. Connects with the shortening of the total length a change in center of gravity that a short wheelbase has the consequence of what the agility of the aerial work platform in Road traffic benefits. In addition, by shifting the focus the reach of the tower towards the front Driver's cab of the carrier vehicle significantly increased.

Die ebenfalls vorhandene vergleichsweise große Kröpfung des Schwenkturms wird gemäß der vorliegenden Erfindung dadurch ausgeglichen, daß das Schwenken um zwei gegeneinander versetzt angeordnete Drehachsen erfolgt, die erfindungsgemäß zu einer gegenläufigen Zwangsbewegung miteinander verbunden sind. Der Schwenkturm ist dabei mit dem Horizontalbalken verbunden, derart, daß sie eine gegenläufige Drehbewegung aufweisen.The comparatively large offset of the Schwenkturms according to the present invention balanced that the pivoting offset by two arranged axes of rotation takes place, which according to the invention to a opposing forced movement are interconnected. Of the The swing tower is connected to the horizontal beam, such that they have an opposite rotational movement.

Vorteilhafterweise wird die gegenläufige Bewegung zwischen dem Schwenkturm und dem Horizontalbalken durch ein zwischen beiden Elementen wirkendes Getriebe erzeugt, wobei die gegenläufige Winkelgeschwindigkeit zwischen Horizontalbalken und Schwenkturm ungefähr gleich groß ist. Dadurch ist gewährleistet, daß ein Überschreiten der Fahrzeugkontur weitestgehend vermieden wird. Zudem wird eine gleichmäßige Gewichtsbelastung der Stützen bzw. des Trägerfahrzeuges erzielt. Außerdem wird durch die Gegenläufigkeit von Horizontalbalken und Schwenkturm vorteilhafterweise eine Antriebsmomentenreduzierung des Getriebes um ca. 50 % erreicht.The opposite movement between the The swing tower and the horizontal beam by a between the two Element-acting gear generated, the opposite Angular velocity between the horizontal bar and the swing tower is about the same size. This ensures that a Exceeding the vehicle contour is largely avoided. In addition, an even weight load of the supports or of the carrier vehicle. In addition, the opposite of horizontal beams and swing tower advantageously the transmission torque is reduced by approx. 50%.

Zudem kann der Abstand zwischen beiden Drehachsen vorteilhafterweise mit einem Gegengewicht ausbalanciert werden, wodurch sich der Schwerpunkt weitgehend innerhalb einer eng gehaltenen Abstützeinrichtung hält, die möglichst die Fahrzeuggröße nicht überschreitet. Auch die Abkröpfung ist erfindungsgemäß so bemessen, das sie einerseits im Fahrbetrieb oberhalb eines Führerhauses zu liegen kommt und andererseits die Fahrzeugbreite nicht überschreitet.In addition, the distance between the two axes of rotation can advantageously be balanced with a counterweight, which makes the focus is largely within a narrow support structure that does not hold the vehicle size if possible exceeds. According to the invention, the offset is also dimensioned such that on the one hand when driving above a cab comes to rest and on the other hand the vehicle width does not exceeds.

Die auch bei der Erfindung verwendete bekannte Abstützeinrichtung kann erforderlichenfalls über die von der Plattform eingenommene Fläche hinaus erstreckt werden, wenngleich in den meisten Fällen eine einseitige Abstützung ausreicht.The known support device also used in the invention can if necessary via the platform occupied area are extended, although in the one-sided support is sufficient in most cases.

Weitere Einzelheiten, Merkmale und Vorteile der vorliegenden Erfindung ergeben sich aus der nachfolgenden Beschreibung eines zeichnerisch dargestellten Ausführungsbeispiels. Further details, features and advantages of the present invention result from the following description of a embodiment shown in the drawing.

Es zeigen

Figur 1
eine Seitenansicht einer selbstfahrenden Hubarbeitsbühne in der üblichen Fahrtstellung;
Figur 2
eine Draufsicht der Hubarbeitsbühne im Betriebszustand mit einer in eine 45°-Stellung geschwenkte Hubeinrichtung;
Figur 3
eine Ansicht vom Heck mit einem optimal weit ausgelegten Ausleger;
Figur 4
eine Draufsicht in einer gegenüber Figur 2 anderen Arbeitsstellung; und
Figur 5
eine Seitenaufsicht auf die selbstfahrende Hubarbeitsbühne in einer Stellung, in der sich der Arbeitskorb vor dem Führerhaus befindet.
Show it
Figure 1
a side view of a self-propelled aerial work platform in the usual driving position;
Figure 2
a plan view of the aerial work platform in the operating state with a lifting device pivoted into a 45 ° position;
Figure 3
a view from the rear with an optimally wide arm;
Figure 4
a plan view in a different working position compared to Figure 2; and
Figure 5
a side view of the self-propelled aerial work platform in a position in which the work basket is in front of the cab.

Das dargestellte Ausführungsbeispiel zeigt eine selbstfahrende Hubarbeitsbühne 10. Ein Chassis oder eine Plattform 12 wird im Fahrbetrieb von einem Fahrwerk abgestützt, von dem Räder 16 dargestellt sind. Für die Abstützung im Betrieb ist eine Stützvorrichtung mit ausfahrbaren Stützen 18 vorhanden, zu der zu bemerken ist, daß die Stützvorrichtungen normalerweise lediglich vertikal an den vier äußeren Ecken des Chassis oder der Plattform 12 angeordnet zu sein brauchen.The illustrated embodiment shows a self-driving Aerial work platform 10. A chassis or platform 12 is in the Driving operation supported by a chassis from which wheels 16 are shown. A support device is provided for support during operation with extendable supports 18 available to the note that the supports are usually merely vertically at the four outer corners of the chassis or platform 12 need to be arranged.

Auf der Plattform 12 sitzt im Mittenbereich der Plattformfläche oder im Mittenbereich zwischen den vier Abstützungen 18 mit einer vertikalen Drehachse 20 ein feststehender, d.h. mit der Plattform 12 verbundener Drehkranz 22, um dessen vertikale Achse 20 ein Horizontalbalken 24 schwenkbar ist. Der Drehkranz 22 kann allerdings auch von der Mitte der Plattform 12 versetzt angeordnet sein. An einem Ende des Horizontalbalkens 24 ist ein zweiter Drehkranz 26 mit einer Drehachse 28 vorgesehen. Am gegenüberliegenden Ende des Horizontalbalkens 24 befindet sich ein Gegengewicht 30.On the platform 12 sits in the middle of the platform area or in the middle area between the four supports 18 a vertical axis of rotation 20 is a fixed, i.e. with the Platform 12 connected slewing ring 22 about its vertical axis 20 a horizontal bar 24 is pivotable. The slewing ring 22 can however, also offset from the center of the platform 12 be. At one end of the horizontal bar 24 is a second slewing ring 26 is provided with an axis of rotation 28. At the opposite end of the horizontal bar 24 is located a counterweight 30.

Der zweite Drehkranz 26 trägt einen Schwenkturm 32, der im dargestellten Ausführungsbeispiel in eine abgekröpfte Gabel 34 übergeht. Am freien Ende der Gabel 34 befindet sich ein horizontales Gelenk 36, in dem ein Ausleger 38 auf- und abschwenkbar gelagert ist. Selbstverständlich kann der Ausleger 38 auch teleskopförmig ausziehbar sein. An der Stütze des Auslegers befindet sich üblicherweise ein Arbeitskorb 40.The second slewing ring 26 carries a swing tower 32, which in the Embodiment shown in a cranked fork 34th transforms. At the free end of the fork 34 there is a horizontal one Hinge 36 in which a boom 38 can be swung up and down is stored. Of course, the boom 38 can also be telescopic be extendable. Located on the bracket of the boom usually a work basket 40.

Wie aus den Figuren 1 und 5 hervorgeht, kann das selbstfahrende Arbeitsgerät sowohl in der üblichen Weise mit dem Arbeitskorb 40 hinter dem Heck als auch vor dem Führerhaus 14 bewegt werden, um im Fahrbetrieb die Fahrlänge möglichst kurz halten zu können.As can be seen from Figures 1 and 5, the self-propelled Tool both in the usual way with the basket 40 to be moved behind the stern as well as in front of the cab 14 to keep the driving length as short as possible while driving.

Wie aus den Figuren 2 und 4 hervorgeht, sind einerseits der zweite Drehkranz 26 mit seinem Aufbau und hierbei hauptsächlich mit dem Ausleger 38 um die Achse 28 und andererseits der Horizontal- bzw. Waagebalken 24 um die Achse 20 zu einer gegenläufigen Drehbewegung zwangsverbunden, und zwar so, daß die Drehbewegung in Richtung der eingezeichneten Pfeile erfolgt. Die Drehverbindung erfolgt über ein Getriebe innerhalb des Horizontalbalkens 24, das in der Darstellung der Zeichnung nicht sichtbar ist. Es kann sich um eine beliebige formschlüssige, insbesondere eine Zahnradgetriebe-Verbindung oder Reibverbindung, um eine Riemen- oder Kettenverbindung handeln, die sich vorzugsweise um einen feststehenden, geschlossenen Kreisbogen abrollt, abwälzt oder abwickelt. Der Antrieb dieser gleichzeitigen und gegensinnigen Schwenkbewegung des Schwenkturms 32 gegen die Schwenkbewegung des Horizontalbalkens 24 kann auf verschiedene Weise eingeleitet werden. Es kann die Achse 20 oder die Achse 28 angetrieben werden. Bevorzugt wird eine Bewegungskopplung, bei der einer der beiden Zahnkränze 22 oder 26 feststeht und der angetriebene Teil sich auf diesem Zahnkranz des feststehenden Teils über zumindest ein Vorgelegeritzel abwälzt. So würde eine in die Achse 28 eingeleitete Drehbewegung ein Schwenken des Schwenkturms 32 mit Ausleger 38 ebenso zur Folge haben, wie eine gegenläufige Zwangsbewegung des Horizontalbalkens 24. Die gegenläufige Winkelgeschwindigkeit beider Bewegungen ist gleich groß. Dies kann beispielsweise durch ein Getriebe verwirklicht werden, bei dem sich der angetriebene zweite Drehkranz 26 mit einem Zahnrad über ein Vorgelegeritzel mit einem beliebigen Durchmesser auf einem gegenüberliegenden feststehenden Zahnkranz abrollt.As can be seen from Figures 2 and 4, on the one hand second slewing ring 26 with its structure and mainly here with the boom 38 about the axis 28 and on the other hand the horizontal or balance beam 24 about the axis 20 to an opposite Forced rotation, so that the rotation in the direction of the arrows. The Rotary connection takes place via a gear within the horizontal bar 24, which is not visible in the illustration of the drawing is. It can be any positive, in particular a gear transmission connection or friction connection to a belt or chain link, which is preferred rolls around a fixed, closed circular arc or unwinds. The drive of this simultaneous and opposite Pivotal movement of the swing tower 32 against the Pivotal movement of the horizontal bar 24 can be different Way to be initiated. The axis 20 or the axis 28 can be are driven. A motion coupling is preferred at one of the two ring gears 22 or 26 is fixed and the driven one Part of the fixed on this ring gear Rolls partly over at least one countershaft sprocket. That would be one in the axis 28 initiated rotary movement a pivoting of the Gravity tower 32 with boom 38 as a consequence, as one opposing forced movement of the horizontal bar 24. The opposite The angular velocity of both movements is the same. This can be achieved, for example, by means of a gear, in which the driven second slewing ring 26 with a Gear via a counter pinion with any diameter rolls on an opposite fixed ring gear.

Die Drehbewegung kann auch zweckmäßigerweise über die Achse 20 des ersten Drehkranzes 22 mit einem Motor eingeleitet werden. Der zweite Drehkranz 26 würde dann fixiert sein.The rotary movement can also expediently be carried out via the axis 20 of the first slewing ring 22 can be initiated with a motor. The second slewing ring 26 would then be fixed.

Wie Figur 3 zeigt, befindet sich selbst in rechtwinkliger Auslenkung der Längserstreckung der Plattform 12 das Gegengewicht 30 innerhalb des Bereichs der Plattform 12, so daß beispielsweise auf der Seite des Gegengewichts in dieser Arbeitsstellung ein Verkehr ungehindert vorbeifließen kann. Diese Stellung kann beispielsweise bei Arbeiten jenseits eines Brückengeländers wesentlich sein.As FIG. 3 shows, there is even a right-angle deflection the longitudinal extension of the platform 12 is the counterweight 30 within the area of the platform 12, so that for example on the side of the counterweight in this working position traffic can flow freely. This position can for example when working beyond a railing be essential.

Auch in allen übrigen Stellungen kann selbst dann, wenn sich die Abkröpfung der Gabel 34 in den Verkehrsraum erstreckt, genügend Platz für einen vorbeifließenden Verkehr bleiben. Bei den in Figur 2 und 4 klargestellten diagonalen Stellungen ist auf der einen Seite der Arbeitsmaschine vorbeifließender Verkehr ohnehin nicht behindert, während auf der Seite der Arbeitsbühne oder des Korbs 40 der Verkehr unterhalb des Auslegers 38 genügend freien Platz findet.Even in all other positions, even if the Elbow of the fork 34 extends into the traffic space, sufficient Space for traffic flowing past. In the Figure 2 and 4 clarified diagonal positions is on the traffic flowing past one side of the work machine anyway not hindered while on the side of the work platform or the Basket 40 of traffic beneath the boom 38 enough free Finds space.

Claims (15)

  1. A mobile working platform with an undercarriage (16) and support means (18) for a platform (12) on which a first live ring (22) is mounted which has its vertical axis (20) roughly centered on said platform (12) and carries a horizontal beam (24) which can be swivelled about said axis (20), said beam (24) including a second live ring (26) with staggered axis including a swivel tower (32) with a basketlike working platform (40) mounted on the tip of a boom (38), said swivel tower (32) being rotatable about a vertical axis (28) of said second live ring (26) wherein said swivel tower (32) is connected to said horizontal beam (24) such that their respective rotary movements are opposed.
  2. The mobile working platform as claimed in claim 1
    wherein the opposed movements of the swivel tower (32) and the horizontal beam (24) can be generated by a gear acting between the two.
  3. The mobile working platform as claimed in claim 2
    wherein said gear constitutes a positive connection.
  4. The mobile working platform as claimed in claim 2
    wherein said gear is of the friction type.
  5. The mobile working platform as claimed in one or plural of the preceding claims
    wherein said gear is of the chain or belt type.
  6. The mobile working platform as claimed in claims 1, 2 or 3
    wherein said gear is a toothed gearing.
  7. The mobile working platform as claimed in claim 6
    wherein said gear is constituted by two directly meshing toothed wheels between the two swivelling axes (20, 28).
  8. The mobile working platform as claimed in claim 6
    wherein said gear is a gear reducer unit with a counter pinion between two toothed wheels (42, 44), where one each of said toothed wheels (42, 44) is connected to one each of said swivelling axes (20, 28), and one each of said two toothed wheels (42, 44) or the pinion is firmly connected to its associated axis (20, 28).
  9. The mobile working platform as claimed in one or plural of the preceding claims
    wherein the axis (20) of the first live ring (22) is driven and the axis (28) of the second live ring (26) is firmly connected to the swivel tower (32).
  10. The mobile working platform as claimed in one of claims 1 to 8
    wherein the axis (28) of the second live ring (26) is driven and the axis (20) of the first live ring (22) is firmly connected to the platform (12).
  11. The mobile working platform as claimed in one or plural of the preceding claims
    wherein the opposed angular velocities of the horizontal beam (24) and the swivel tower (32) are equal.
  12. The mobile working platform as claimed in one or plural of the preceding claims
    wherein the horizontal beam (24) is balanced by means of a counterweight (36).
  13. The mobile working platform as claimed in claim 12
    wherein the distance between the axis (28) of the second live ring (26) and the swivel axis (20) of the first live ring and the distance between the axis (20) of the first live ring (22) and the gravity axis of the counterweight (36) are equal.
  14. The mobile working platform as claimed in one or plural of the preceding claims
    wherein the support means (34) with the joint (36) of the boom (38) has a bend section bent in a direction opposite the working basket (40) and at a height level above a normal clearance space reserved for traffic.
  15. The mobile working platform as claimed in claim 14
    wherein said bend section extends beyond a driver's cabin (14) when the boom (38) is longitudinally disposed with respect to the vehicle (10), yet does not exceed the width of the platform (12) considerably.
EP97102333A 1996-06-17 1997-02-13 Mobile working platform Expired - Lifetime EP0814052B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29610630U DE29610630U1 (en) 1996-06-17 1996-06-17 Mobile aerial work platform
DE29610630U 1996-06-17

Publications (2)

Publication Number Publication Date
EP0814052A1 EP0814052A1 (en) 1997-12-29
EP0814052B1 true EP0814052B1 (en) 1999-12-01

Family

ID=8025313

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97102333A Expired - Lifetime EP0814052B1 (en) 1996-06-17 1997-02-13 Mobile working platform

Country Status (7)

Country Link
US (1) US6250423B1 (en)
EP (1) EP0814052B1 (en)
CN (1) CN1093837C (en)
AT (1) ATE187149T1 (en)
DE (2) DE29610630U1 (en)
DK (1) DK0814052T3 (en)
ES (1) ES2139407T3 (en)

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US7055912B2 (en) * 2003-09-23 2006-06-06 Terry Lynn Luscombe Vehicle mounted utility apparatus with quick attachment means
DE10360244A1 (en) * 2003-12-20 2005-07-21 Anton Ruthmann Gmbh & Co. Kg Automotive lifting platform for a truck comprises a rotating tower which hinges on a rolling segment about an axle parallel to the plane of the platform
DE202004009199U1 (en) 2004-06-11 2004-09-30 B. Teupen Maschinenbau Gmbh Mobile aerial work platform for arcade buildings
US20060032702A1 (en) * 2004-07-29 2006-02-16 Oshkosh Truck Corporation Composite boom assembly
US20060032701A1 (en) * 2004-07-29 2006-02-16 Oshkosh Truck Corporation Composite boom assembly
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US9004842B2 (en) 2011-10-10 2015-04-14 Wastequip, Llc Hoist apparatus
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Also Published As

Publication number Publication date
EP0814052A1 (en) 1997-12-29
CN1171366A (en) 1998-01-28
DE59700785D1 (en) 2000-01-05
ATE187149T1 (en) 1999-12-15
ES2139407T3 (en) 2000-02-01
US6250423B1 (en) 2001-06-26
DE29610630U1 (en) 1997-11-13
CN1093837C (en) 2002-11-06
DK0814052T3 (en) 2000-05-08

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