EP0099485B1 - Working device with boom and working platform - Google Patents

Working device with boom and working platform Download PDF

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Publication number
EP0099485B1
EP0099485B1 EP83106174A EP83106174A EP0099485B1 EP 0099485 B1 EP0099485 B1 EP 0099485B1 EP 83106174 A EP83106174 A EP 83106174A EP 83106174 A EP83106174 A EP 83106174A EP 0099485 B1 EP0099485 B1 EP 0099485B1
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EP
European Patent Office
Prior art keywords
boom
axis
railing
longitudinal
carrier
Prior art date
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EP83106174A
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German (de)
French (fr)
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EP0099485A1 (en
Inventor
Paul Frey-Wigger
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Frey-Wigger Paul
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Frey-Wigger Paul
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Priority to AT83106174T priority Critical patent/ATE17701T1/en
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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
    • B66F11/046—Working platforms suspended from booms of the telescoping type

Definitions

  • the present invention relates to an implement according to the preamble of patent claim 1.
  • Such an implement is described for example in GB-A No. 1537771.
  • the telescopic boom is flagged and lowered into a horizontal position during road transport.
  • the carrier and the work platform can be swiveled either diagonally forwards in the direction of travel, namely over or next to the lying boom or in the extension thereof to the rear. If the jib is part of a larger pneumatic crane, this will exceed the maximum permissible transverse or longitudinal dimensions of the working device for road transport, so that special rules and special routes must be observed for moving it on public roads, since driving under bridges or driving through tunnels or other restrictions is only possible to a limited extent.
  • US-A No. 3196979 discloses a working device in which a working platform is suspended in a hanging manner by means of a pivoting lever at the end of the jib of a pneumatic crane. In the transport position in which the jib is retracted and lowered, the working platform is placed on top of the lying jib, which increases the transport height of the implement and makes it difficult to move it on public roads.
  • the object of the present invention is to improve a working device of the type mentioned at the outset in such a way that the working platform can remain on the boom during road transport without the longitudinal or transverse dimensions of the vehicle being changed significantly and displacement on public roads being made more difficult.
  • reference numeral 1 denotes the telescopic boom of a self-propelled pneumatic crane known per se, at the ends of which the two deflection rollers 2 and 3 for the crane cable (not shown) are attached.
  • the axes of rotation 4 of the deflecting rollers 2 and 3 projecting laterally above the crane boom 1 are flattened at the top and bottom and penetrated with bores 6 for receiving plug pins 7 for connecting a support T.
  • An adapter 8 of the carrier T has two pairs of arms 9 arranged one above the other and a support frame 10.
  • the arms of each pair of arms reach on opposite sides past the end of the boom and, with their forked ends, overlap or underlap the laterally protruding ends of the axes of rotation 4 of the deflecting cranks 2 and 3 and are provided with the bores 6 corresponding, kaachsiale bores.
  • the adapter 8 is fastened to the boom 1 by means of plug pins 7 inserted into the bores. If the plug pins 7 are pulled out on one side of the bracket, the adapter 8 can be pivoted backwards about a first pivot axis 5, formed by the pins 7 of the other side of the bracket, like a door leaf.
  • each pipe clamp bearing 11 has a lower half shell firmly connected to the supporting frame 10 and an upper half shell which can be pivoted away.
  • two coaxially aligned pipe clamp bearings 13 are arranged, which serve to receive a pipe section 14.
  • the tube pieces 12 and 14 are connected by a strut 15 fixed to one another, are located at the upper and lower joint strut 16 and 1 7 is articulated.
  • the other ends of the articulated struts 16 and 17 are articulated on a pivot bearing housing 18, which forms a second pivot axis 19.
  • a pivot shaft 20 is rotatably mounted, which is firmly connected to tabs 21 at the top and bottom.
  • a frame 22, to which a work platform 23 is fastened, is also firmly connected to the tabs 21.
  • the work platform 23 is fenced by the frame 22 and by two side railings 24 and a front railing 25.
  • the side railings 24 are releasably connected to the front railing 25 at 26 (see FIGS. 3 to 5) and articulated on the frame 22 such that they can be pivoted against the frame 22 and in its plane parallel to the axis 19.
  • the front railing 25 is articulated at 27 on the work platform 23 and, as FIGS. 4 and 5 show, against the work surface form 23.
  • the work platform 23 is in turn articulated to the frame 22 at 28 and can be pivoted together with the front railing 25 into a position parallel to the frame 22 (FIG. 5). If the railings 24 and 25 and the working platform 23 are folded in the manner described, the frame 22 can be pivoted about the axis 19 by 90 ° so that it lies parallel to the articulated struts 16 and 17. If the plug pins 7 are pulled out on one side of the boom 1, the articulated struts 16 and 17 together with the frame 22 can be pivoted rearward about the first axis 5 into a position parallel to the boom 1, as shown in FIG. 6. In this transport position of the working platform 23, it can be transported on the boom 1 without any special measures.
  • the two hinge struts 16 and 17 are articulated by a cross strut 29 which divides the upper hinge strut 17 into two parts, one part 30 of which is telescopically adjustable in length and consists of a hydraulic cylinder piston unit 30.
  • the inclination of the work platform 23 can be changed by adjusting the length of the articulated strut part 30.
  • the inclination of the articulated struts 16 and 17 can be adjusted by means of a hydraulic cylinder piston unit acting on the strut 15 on the one hand and on the articulated strut 16 on the other hand.
  • the work platform 23 By actuating the cylinder piston units 30 and 31 (with the crane boom 1 fully retracted), the work platform 23 can be lowered to the floor in a horizontal orientation, which makes it easier for a work trail to enter the work platform 23.
  • the fixed bearing shell halves are arranged horizontally, whereas the fixed bearing shell halves 33 of the lower pipe clamp bearings 13 are arranged in an upright position.
  • the work platform 23 can be attached to the adapter 8 in a simple manner by first inserting the upper pipe section 12 into the lying, fixed bearing shell halves 32 with the work platform slightly raised (FIG. 7) and then pivoting the entire support downwards until the pipe section 14 lies in the lower, fixed bearing shell halves 33.
  • the movable half-shells can then be closed and screwed to the fixed half-shells.
  • the side railings 24 'at 26' are pivotally articulated about an axis on the front railing 25 'and can be firmly locked at the free end by a pin 35 to the frame 22', the pin being provided by correspondingly coaxial eyelets on the side railing 24 'and on the frame 22 'is inserted.
  • the side railing 24 ' can be pivoted about the axis 26' against the front railing 25 ', the pivot axis 26' being offset from the plane of the front railing 25 'to such an extent that the pivoted side railing 24' lies flat against the front railing 25 ', ie comes to lie with its inside on the inside of the front railing 25 '.
  • the two side railings 24 ' can be pivoted about the axis 27 ', their distance from the working platform 23 being selected such that the side railings 24 'lie evenly on the upper side of the platform with its outside, so that the working platform 23', the side railings 24 'and the front railing 25' touch one another in parallel alignment.
  • the working platform 23 ' is then pivoted 90 ° about the axis 37 against the frame 22', the offset of the axis 37 again being chosen such that the front railing 25 'comes to lie parallel to the frame 22' with its outside.
  • the working platform 23 ', the frame 22', the side railings 24 'and the front railing 25' lie on top of one another like plates in a packet-like manner and without a gap, so that the working platform, when pivoted into the transport position shown in broken lines in FIG. 2, occupies a minimum of space.

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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)
  • Jib Cranes (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

The free end portion of the boom of a crane is detachably coupled to a flat rectangular carrier for a collapsible gallery. The carrier can pivot about an axis which is normal to the longitudinal direction of the boom to and from a position adjacent to one side of the boom, and the collapsed gallery can be pivoted to a position outwardly adjacent to the carrier when the latter is adjacent to one side of the boom. This renders it possible to move the crane without detaching the carrier and the gallery from the boom. The flat sections of the gallery are collapsible into planes which are parallel to the pivot axis between the gallery and the carrier.

Description

Die vorliegende Erfindung bezieht sich auf ein Arbeitsgerät nach dem Oberbegriff des Patentanspruchs 1.The present invention relates to an implement according to the preamble of patent claim 1.

Ein derartiges Arbeitsgerät ist beispielsweise in der GB-A Nr. 1537771 beschrieben. Während eines Strassentransports ist bei diesem Gerät, wie bei Pneukranen üblich, der Teleskopausleger eingefahnen und in eine horizontale Lage abgesenkt. Der Träger und die Arbeitsplattform können dabei in Fahrrichtung entweder schräg nach vorne, und zwar über oder neben den liegenden Ausleger oder in dessen Verlängerung nach hinten geschwenkt werden. Ist der Ausleger Teil eines grösseren Pneukrans, so werden dadurch die für den Strassentransport höchst zulässigen Quer- oder Längsmasse desArbeitsgerätes überschritten, so dassfür seine Verschiebung auf öffentlichen Strassen besondere Regeln und besondere Routen zu beachten sind, da das Unterfahren von Brücken oder das Durchfahren von Tunnels oder anderen Engnissen nur beschränkt möglich ist.Such an implement is described for example in GB-A No. 1537771. As usual with pneumatic cranes, the telescopic boom is flagged and lowered into a horizontal position during road transport. The carrier and the work platform can be swiveled either diagonally forwards in the direction of travel, namely over or next to the lying boom or in the extension thereof to the rear. If the jib is part of a larger pneumatic crane, this will exceed the maximum permissible transverse or longitudinal dimensions of the working device for road transport, so that special rules and special routes must be observed for moving it on public roads, since driving under bridges or driving through tunnels or other restrictions is only possible to a limited extent.

Aus der US-A Nr. 3831771 ist es bekannt, bei Pneukranen die Verlängerungsstücke für den Teleskopausleger bei Nichtgebrauch oder für den Strassentransportseitlich neben denTeleskopausleger zu schwenken, wodurch die Querschnitt-und Längsabmessungen des Pneukrans nichtver- ändert werden.From US-A No. 3831771 it is known for pneu cranes to pivot the extension pieces for the telescopic boom when not in use or for road transport to the side next to the telescopic boom, whereby the cross-sectional and longitudinal dimensions of the pneu crane are not changed.

Weiter offenbart die US-A Nr. 3196979 ein Arbeitsgerät, bei dem eine Arbeitsplattform mittels einem Schwenkhebel am Ende des Auslegers eines Pneukrans hängend abgelenkt ist In der Transportstellung, in der der Ausleger eingefahren und abgesenkt ist, istdie Arbeitsplattform oben auf den liegenden Ausleger aufgelegt, was die Transporthöhe des Arbeitsgerätes vergrössert und dessen Verschiebung auf öffentlichen Strassen erschwert.Furthermore, US-A No. 3196979 discloses a working device in which a working platform is suspended in a hanging manner by means of a pivoting lever at the end of the jib of a pneumatic crane. In the transport position in which the jib is retracted and lowered, the working platform is placed on top of the lying jib, which increases the transport height of the implement and makes it difficult to move it on public roads.

Die vorliegende Erfindung stellt sich die Aufgabe, ein Arbeitsgerät der eingangs erwähnten Art derart zu verbessern, dass die Arbeitsbühne während eines Strassentransports am Ausleger verbleiben kann, ohne dass die Längs- oder Querabmessungen des Fahrzeugs wesentlich verändert werden und eine Verschiebung auf öffentlichen Strassen erschwert wird.The object of the present invention is to improve a working device of the type mentioned at the outset in such a way that the working platform can remain on the boom during road transport without the longitudinal or transverse dimensions of the vehicle being changed significantly and displacement on public roads being made more difficult.

Erfindungsgemäss wird diese Aufgabe gelöst durch die kennzeichnenden Merkmale des Patentanspruchs 1.According to the invention, this object is achieved by the characterizing features of patent claim 1.

Anhandder beiliegenden schematischen Zeichnung wird die Erfindung beispielsweise erläutert. Es zeigen:

  • Fig. 1 eine Seitenansicht des Auslegers mit der Arbeitsbühne,
  • Fig. 2 eine Draufsicht auf Fig. 1,
  • Fig. 3 eine Draufsicht auf die Arbeitsplattform,
  • Fig. 4 und 5 eine Seitenansicht zu Fig. 3 in zwei verschiedenen Stellungen während des Zusammenklappens der Arbeitsplattform,
  • Fig. 6 eine gleiche Darstellung wie Fig. 1 mit in Transportstellung geschwenkter Arbeitsbühne,
  • Fig. 7 eine gleich Ansicht Fig. 1, welche zeigt, wie die Arbeitsplattform am Ausleger befestigt wird,
  • Fig. 8 eine Draufsicht entsprechend Fig. 3 auf ein zweites Ausführungsbeispiel einer Arbeitsplattform,
  • Fig. 9 + 10 eine Seitenansicht zur Fig. 8 in zwei verschiedenen Stellungen während des Zusammenklappens der Arbeitsplattform und
  • Fig. 11 eine Draufsicht auf eine zusammengeklappte Arbeitsplattform.
The invention is explained, for example, with reference to the accompanying schematic drawing. Show it:
  • 1 is a side view of the boom with the work platform,
  • 2 is a plan view of FIG. 1,
  • 3 is a plan view of the work platform,
  • 4 and 5 is a side view of FIG. 3 in two different positions while folding the work platform,
  • 6 shows the same representation as FIG. 1 with the working platform pivoted into the transport position,
  • 7 is a view similar to FIG. 1, showing how the work platform is attached to the boom,
  • 8 is a plan view corresponding to FIG. 3 of a second embodiment of a work platform,
  • Fig. 9 + 10 is a side view of FIG. 8 in two different positions during the folding of the work platform and
  • Fig. 11 is a plan view of a folded work platform.

In Fig. 1 bezeichnet die Hinweisziffer 1 den Teleskopausleger eines an sich bekannten, selbstfahrenden Pneukrans, an dessen Enden die beiden Umlenkrollen 2 und 3 für das nicht dargestellte Kranseil angebracht sind. Die den Kranausleger 1 seitlich überragenden Drehachsen 4 der Umlenkrollen 2 und 3 sind oben und unten abgeflacht und mit Bohrungen 6 zur Aufnahme von Steckbolzen 7, für den Anschluss eines Trägers T, durchsetzt.In Fig. 1, reference numeral 1 denotes the telescopic boom of a self-propelled pneumatic crane known per se, at the ends of which the two deflection rollers 2 and 3 for the crane cable (not shown) are attached. The axes of rotation 4 of the deflecting rollers 2 and 3 projecting laterally above the crane boom 1 are flattened at the top and bottom and penetrated with bores 6 for receiving plug pins 7 for connecting a support T.

Ein Adapter 8 des Trägers T weist zwei übereinander angeordnete Armpaare 9 sowie einen Tragrahmen 10 auf. Die Arme jedes Armpaares greifen zu gegenüberliegenden Seiten am Auslegerende vorbei und über- bzw. untergreifen dabei mit ihren gegabelten Enden die seitlich herausragenden Enden der Drehachsen 4 der Umlenkrolfen 2 und 3 und sind mit den Bohrungen 6 entsprechenden, kaachsialen Bohrungen versehen. Durch in die Bohrungen eingeschobene Steckbolzen 7 ist der Adapter 8 am Ausleger 1 befestigt. Werden die Steckbolzen 7 an einer Auslegerseite herausgezogen, so kann der Adapter8 um eine erste Schwenkachse 5, gebildet durch die Steckbolzen 7 der anderen Auslegerseite, wie ein Türblatt nach hinten umgeschwenkt werden. Am oberen Ende des Tragrahmens 10 sind zwei koachsial ausgerichtete Rohrschellenlager 11 angeordnet,diederAufnah- me eines Rahrstückes 12 dienen. Jedes Rohrschellenlager11 weist eine mit den Tragrahmen 10 fest verbundene untere Halbschale sowie eine obere, wegschwenkbare Halbschale auf. Am unteren Ende des Tragrahmens 10 sind zwei koachsial ausgerichtete Rohrschellenlager 13 angeordnet, die der Aufnahme eines Rohrstückes 14 dienen. Die Rohrstücke 12 und 14 sind durch eine Strebe 15 fest miteinander verbunden, an der eine obere und eine untere Gelenkstrebe 16 bzw. 17 angelenkt sind. Die anderen Enden der Gelenkstreben 16 und 17 sind an einem Schwenklagergehäuse 18 angelenkt, das eine zweite Schwenkachse 19 bildet. Im Schwenklagergehäuse 18 ist eine Schwenkwelle 20 drehbar gelagert, welche oben und unten fest mit Laschen 21 verbunden ist. Mit den Laschen 21 fest verbunden ist weiter ein Rahmen 22, an dem eine Arbeitsplattform 23 befestigt ist. Die Arbeitsplattform 23 ist vom Rahmen 22 und von zwei Seitengeländern 24 und einem Frontgeländer 25 eingezäunt. Die Seitengeländer 24 sind (vgl. Fig. 3 bis 5) bei 26 lösbar mit dem Frontgeländer 25 verbunden und am Rahmen 22 angelenkt, derart, dass sie gegen den Rahmen 22 und in dessen, zur Achse 19 parallele Ebene schwenkbar sind. Das Frontgeländer 25 ist bei 27 an der Arbeitsplattform 23 angelenkt und kann, wie die Fig. 4 und 5 zeigen, gegen die Arbeitsplattform 23 umgelegt werden. Die Arbeitsplattform 23 ihrerseits ist bei 28 gelenkig mit dem Rahmen 22 verbunden und kann zusammen mit dem Frontgeländer 25 in eine zum Rahmen 22 parallele Lage geschwenkt werden (Fig. 5). Sind die Geländer 24 und 25 und die Arbeitsplattform 23 in der beschriebenen Weise zusammengeklappt, kann der Rahmen 22 um die Achse 19 um 90° verschwenkt werden, so dass er parallel zu den Gelenkstreben 16 und 17 liegt. Werden die Steckbolzen 7 auf einer Seite des Auslegers 1 herausgezogen, können die Gelenkstreben 16 und 17 zusammen mit dem Rahmen 22 nach hinten um die erste Achse 5 in eine zum Ausleger 1 parallele Lage verschwenkt werden, wie dies Fig. 6 zeigt. In dieser Transportstellung der Arbeitsplattform 23 lässt sich diese ohne besonderen Massnahmen am Ausleger 1 transportieren.An adapter 8 of the carrier T has two pairs of arms 9 arranged one above the other and a support frame 10. The arms of each pair of arms reach on opposite sides past the end of the boom and, with their forked ends, overlap or underlap the laterally protruding ends of the axes of rotation 4 of the deflecting cranks 2 and 3 and are provided with the bores 6 corresponding, kaachsiale bores. The adapter 8 is fastened to the boom 1 by means of plug pins 7 inserted into the bores. If the plug pins 7 are pulled out on one side of the bracket, the adapter 8 can be pivoted backwards about a first pivot axis 5, formed by the pins 7 of the other side of the bracket, like a door leaf. At the upper end of the support frame 10, two coaxially aligned pipe clamp bearings 11 are arranged, which serve to accommodate a moving piece 12. Each pipe clamp bearing 11 has a lower half shell firmly connected to the supporting frame 10 and an upper half shell which can be pivoted away. At the lower end of the support frame 10, two coaxially aligned pipe clamp bearings 13 are arranged, which serve to receive a pipe section 14. The tube pieces 12 and 14 are connected by a strut 15 fixed to one another, are located at the upper and lower joint strut 16 and 1 7 is articulated. The other ends of the articulated struts 16 and 17 are articulated on a pivot bearing housing 18, which forms a second pivot axis 19. In the pivot bearing housing 18, a pivot shaft 20 is rotatably mounted, which is firmly connected to tabs 21 at the top and bottom. A frame 22, to which a work platform 23 is fastened, is also firmly connected to the tabs 21. The work platform 23 is fenced by the frame 22 and by two side railings 24 and a front railing 25. The side railings 24 are releasably connected to the front railing 25 at 26 (see FIGS. 3 to 5) and articulated on the frame 22 such that they can be pivoted against the frame 22 and in its plane parallel to the axis 19. The front railing 25 is articulated at 27 on the work platform 23 and, as FIGS. 4 and 5 show, against the work surface form 23. The work platform 23 is in turn articulated to the frame 22 at 28 and can be pivoted together with the front railing 25 into a position parallel to the frame 22 (FIG. 5). If the railings 24 and 25 and the working platform 23 are folded in the manner described, the frame 22 can be pivoted about the axis 19 by 90 ° so that it lies parallel to the articulated struts 16 and 17. If the plug pins 7 are pulled out on one side of the boom 1, the articulated struts 16 and 17 together with the frame 22 can be pivoted rearward about the first axis 5 into a position parallel to the boom 1, as shown in FIG. 6. In this transport position of the working platform 23, it can be transported on the boom 1 without any special measures.

Die beiden Gelenkstreben 16 und 17 sind gelenkig durch eine Querstrebe 29 verbunden, welche die obere Gelenkstrebe 17 in zwei Teile teilt, von denen der eine Teil 30 teleskopartig längenverstellbar ist und aus einer hydraulischen Zylinderkolbeneinheit 30 besteht. Durch eine Längenverstellung des Gelenkstrebenteils 30 kann die Neigung der Arbeitsplattform 23 verändert werden. Durch eine an der Strebe 15 einerseits und an der Gelenkstrebe 16 anderseits angreifende hydraulische Zylinderkolbeneinheit kann die Neigung der Gelenkstreben 16 und 17 verstellt werden. Durch eine Betätigung der Zylinderkolbeneinheiten 30 und 31 kann (bei vollständig eingefahrenem Kranausleger 1 ) die Arbeitsplattform 23 in horizontaler Ausrichtung bis auf den Boden abgesenktwerden, wodurch das Betreten der Arbeitsplattform 23 durch eine Arbeitsequipe erleichtert wird.The two hinge struts 16 and 17 are articulated by a cross strut 29 which divides the upper hinge strut 17 into two parts, one part 30 of which is telescopically adjustable in length and consists of a hydraulic cylinder piston unit 30. The inclination of the work platform 23 can be changed by adjusting the length of the articulated strut part 30. The inclination of the articulated struts 16 and 17 can be adjusted by means of a hydraulic cylinder piston unit acting on the strut 15 on the one hand and on the articulated strut 16 on the other hand. By actuating the cylinder piston units 30 and 31 (with the crane boom 1 fully retracted), the work platform 23 can be lowered to the floor in a horizontal orientation, which makes it easier for a work trail to enter the work platform 23.

Wie Fig 7 zeigt, sind bei den beiden oberen Rohrschellenlagern 11 die festen Lagerschaltenhälften liegend angeordnet, wogegen die festen Lagerschalenhälten 33 der unteren Rohrschellenlager 13 stehend angeordnet sind. Dadurch kann die Arbeitsplattform 23 in einfacher Weise am Adapter 8 befestigt werden, indem bei leicht angehobener Arbeitsplattform (Fig. 7) zuerst das obere Rohrstück 12 in die liegenden, festen Lagerschalenhälften 32 eingelegt und alsdann der ga'nze Träger nach unten geschwenkt wird, bis das Rohrstück 14 in den unteren, festen Lagerschalenhälften 33 liegt. Danach können die beweglichen Lagerschalenhälften geschlossen und mit den festen Lagerschalenhälften verschraubt werden.As shown in FIG. 7, in the two upper pipe clamp bearings 11 the fixed bearing shell halves are arranged horizontally, whereas the fixed bearing shell halves 33 of the lower pipe clamp bearings 13 are arranged in an upright position. As a result, the work platform 23 can be attached to the adapter 8 in a simple manner by first inserting the upper pipe section 12 into the lying, fixed bearing shell halves 32 with the work platform slightly raised (FIG. 7) and then pivoting the entire support downwards until the pipe section 14 lies in the lower, fixed bearing shell halves 33. The movable half-shells can then be closed and screwed to the fixed half-shells.

Beim Ausführungsbeispiel nach Fig. 8 bis 11 sind gleiche oder äquivalente Teile mit gleichen Hinweisziffern versehen.In the exemplary embodiment according to FIGS. 8 to 11, identical or equivalent parts are provided with the same reference numbers.

Bei diesem Ausführungsbeispiel sind die Seitengeländer 24' bei 26' schwenkbar um eine Achse am Frontgeländer 25' angelenkt und am freien Ende durch einen Steckstift 35 mit dem Rahmen 22' fest verriegelbar, wobei der Steckstift durch entsprechend koachsiale Ösen am Seitengeländer 24'und am Rahmen 22' gesteckt wird. Das Seitengeländer 24' kann um die Achse 26' gegen das Frontgeländer 25' verschwenkt werden, wobei die Schwenkachse 26' soweit gegenüber der Ebene des Frontgeländers 25' versetzt ist, dass sich das umgeschwenkte Seitengeländer 24' flächig gegen das Frontgeländer 25' anlegt, d.h., mit seiner Innenseite auf die Innenseite des Frontgeländers 25' zu liegen kommt. Sind nach dem Herausziehen der Stifte 35 die beiden Seitengeländer 24' gegen das Frontgeländer 25' geschwenkt worden, kann das letztere, zusammen mit den ersteren um die Achse 27' verschwenkt werden, wobei deren Abstand zur Arbeitsplattform 23 so gewählt ist, dass die Seitengeländer 24' mit ihrer Aussenseite gleichmässig auf der Plattformoberseite aufliegen, so dass sich die Arbeitsplattform 23', die Seitengeländer 24' und das Frontgeländer 25' bei paralleler Ausrichtung gegenseitig berühren. Danach wird die Arbeitsplattform 23' um 90° um die Achse 37 gegen den Rahmen 22' verschwenkt, wobei die Versetzung der Achse 37 wiederum derart gewählt ist, dass das Frontgeländer 25' mit seiner Aussenseite parallel an den Rahmen 22' zu liegen kommt. Beim Hochklappen der Arbeitsplattform 23' werden zwei klappbare Tragstreben gleichzeitig zusammengeklappt. Diese sind mit einem ihrer Enden am Rahmen 22' und mit dem anderen an der Arbeitsplattform 23' angelenkt und weisen in der Mitte ein Knickgelenk auf. Beim Hochklappen der Arbeitsplattform 23' kommen die Streben 38' seitlich neben den Rahmen 22' zu liegen.In this embodiment, the side railings 24 'at 26' are pivotally articulated about an axis on the front railing 25 'and can be firmly locked at the free end by a pin 35 to the frame 22', the pin being provided by correspondingly coaxial eyelets on the side railing 24 'and on the frame 22 'is inserted. The side railing 24 'can be pivoted about the axis 26' against the front railing 25 ', the pivot axis 26' being offset from the plane of the front railing 25 'to such an extent that the pivoted side railing 24' lies flat against the front railing 25 ', ie comes to lie with its inside on the inside of the front railing 25 '. If, after the pins 35 have been pulled out, the two side railings 24 'have been pivoted against the front railing 25', the latter, together with the former, can be pivoted about the axis 27 ', their distance from the working platform 23 being selected such that the side railings 24 'lie evenly on the upper side of the platform with its outside, so that the working platform 23', the side railings 24 'and the front railing 25' touch one another in parallel alignment. The working platform 23 'is then pivoted 90 ° about the axis 37 against the frame 22', the offset of the axis 37 again being chosen such that the front railing 25 'comes to lie parallel to the frame 22' with its outside. When the work platform 23 'is folded up, two foldable support struts are folded together at the same time. These are articulated with one of their ends to the frame 22 'and with the other to the work platform 23' and have an articulated joint in the middle. When the work platform 23 'is folded up, the struts 38' come to lie laterally next to the frame 22 '.

Bei dieser Ausführungsform liegen die Arbeitsplattform 23', der Rahmen 22', die Seitengeländer 24' und das Frontgeländer 25' wie Platten paketartig und ohne Zwischenraum aufeinander, so dass die Arbeitsplattform, wenn sie in die in Fig. 2 strichpunktiert gezeigte Transportstellung geschwenkt ist, ein Minimum an Platz einnimmt.In this embodiment, the working platform 23 ', the frame 22', the side railings 24 'and the front railing 25' lie on top of one another like plates in a packet-like manner and without a gap, so that the working platform, when pivoted into the transport position shown in broken lines in FIG. 2, occupies a minimum of space.

Claims (6)

1. An Implement with a movable boom (1) adjustable in its length, secured at one end on bearings permitting both swivet and tilt mavements, with a work-platform (23) attached to the booms' end by a carrier (T) and surrounded by a railing (22, 24,25, 26), one end of which carrier pivots around a first axis (5) which is at right anglesto the longitudinal axis of the boom and parallel to its tilt plane, in such a way that the carrier (T) can be swivelled laterally alongside the boom and at its other end forms a second axis (19) parallel to the first-mentioned axis, by which second axis the work-platform (23.) is coupled to the carrier and on which it pivots and that the railings (22,24,25, 26) as well as the work-platform are designed to fold into a plane parallel to the second axis and thereafter can be pivoted laterally around the second axis alongside the boom.
2. An lmplement according to Claim 1, characterized by the fact that the bearing mountings (9-15, 19) of the carrier (T) attached to the two axes (5, 19) are coupled by two swivelbars building a swivel-parallelogram, and that the angle between the swivefbars (16, 17) and the pivotaxes (5, 19) are adjustable by hydraulic power.
3. An Implement according to Claim 1 or 2, characterized by the fact that one of the swivelbars is adjustable in its length.
4. An Implement according to Claim 1, characterized by the fact that the railing consists of a first longitudinal railing (22), a parallel second longitudinal railing (25) placed at a distance therefrom, and two parallel side-railings (24) located at right angles to the longitudinal railings.
5. An Implement according to Claim 4, characterized by the fact that the side railings (24) are detachably coupled to one of the longitudinal railings (22) and can be swivelled against the other longitudinal railing (25) so that they come to lie with their inner sides against the inner side of the other longitudinal railing.
6. An Implement according to Claim 5, characterized by the fact that the work-platform (23) can be swivelled against the first longitudinal railing so that the side railings (24) come to lie between the first longitudinal railing (22) and the work-platform.
EP83106174A 1982-07-12 1983-06-24 Working device with boom and working platform Expired EP0099485B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83106174T ATE17701T1 (en) 1982-07-12 1983-06-24 WORK EQUIPMENT WITH BOOM AND WORK PLATFORM.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH422282 1982-07-12
CH4222/82 1982-07-12

Publications (2)

Publication Number Publication Date
EP0099485A1 EP0099485A1 (en) 1984-02-01
EP0099485B1 true EP0099485B1 (en) 1986-01-29

Family

ID=4272075

Family Applications (1)

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EP83106174A Expired EP0099485B1 (en) 1982-07-12 1983-06-24 Working device with boom and working platform

Country Status (6)

Country Link
US (1) US4518059A (en)
EP (1) EP0099485B1 (en)
JP (1) JPS5922900A (en)
AT (1) ATE17701T1 (en)
AU (1) AU554669B2 (en)
DE (1) DE3362005D1 (en)

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Also Published As

Publication number Publication date
AU1618083A (en) 1984-01-19
ATE17701T1 (en) 1986-02-15
US4518059A (en) 1985-05-21
JPS5922900A (en) 1984-02-06
JPH034477B2 (en) 1991-01-23
DE3362005D1 (en) 1986-03-13
AU554669B2 (en) 1986-08-28
EP0099485A1 (en) 1984-02-01

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