EP1984574B1 - Cantilever arm for a working machine - Google Patents
Cantilever arm for a working machine Download PDFInfo
- Publication number
- EP1984574B1 EP1984574B1 EP06829677.1A EP06829677A EP1984574B1 EP 1984574 B1 EP1984574 B1 EP 1984574B1 EP 06829677 A EP06829677 A EP 06829677A EP 1984574 B1 EP1984574 B1 EP 1984574B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- support arm
- plate
- shaped element
- wall
- shaped
- 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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Links
- 238000005253 cladding Methods 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/30—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom
- E02F3/301—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom with more than two arms (boom included), e.g. two-part boom with additional dipper-arm
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/38—Cantilever beams, i.e. booms;, e.g. manufacturing processes, forms, geometry or materials used for booms; Dipper-arms, e.g. manufacturing processes, forms, geometry or materials used for dipper-arms; Bucket-arms
Definitions
- the invention relates to a support arm on a work machine with the features of the preamble of claim 1.
- Support arms of different types, individually or in combination carry or move a working tool, a support or other components and with connect the work machine.
- These brackets of different length and shape are often hinged to each other, with the moving drives and connected to the machine, the working tool, the support or other components.
- the support arms are usually made of a box-like profile, which is formed by walls, such as upper and lower straps and side walls. On or in the walls receiving points for bolt bearings are welded, via which the support arms are connected to each other, the support arms with the drives, the support arms with the working machine and the support arms with the working tool, the support or other components.
- the walls are usually welded constructions, which are composed of sheets of homogeneous, but different thickness, with their contour along their length dimensioned adapted to the expected stresses.
- a welded profile for tiller and bucket equipment of an excavator is known in which the uniform wall thickness side walls are provided with upper and lower profile reinforced end portions forming the corner portions for the upper and lower belts disposed between the end portions, the end portions being separated the respective contour of the equipment adapted sheets are formed, which are connected by welding with the respective thinner side walls formed by the cross-section.
- the associated with the profile-reinforced end portions side walls are provided with bearings for receiving cylinder receiving points. Due to the necessity of the additional profile-reinforced end regions, such a profile is relatively expensive to manufacture.
- US-A-3,493,133 is a support arm for a work machine with the features of the preamble of claim 1 known.
- a cladding element is provided, which projects into the recess and which is arranged on the outside of the plate-shaped wall.
- the object of the invention is to provide a support arm of the type described, which follows the expected component stresses to a high degree, one possible has low intrinsic mass and can be produced with the least possible effort.
- the at least one wall consists of a one-piece plate-shaped element, but in a further
- the at least one wall comprises a plurality of plate-shaped elements which are welded together. It is preferred that the at least one plate-shaped element has a uniform wall thickness. In order to enable optimum adaptation to the expected component stresses, it is preferably provided that the respective plate-shaped element has a plurality of recesses, which can be freely designed depending on the expected load profile.
- a support arm is proposed with walls in the manner described above, which is adapted by the freely configurable (s) recess (s) to a large extent to the expected stress profile of the component.
- the recesses are accordingly provided in low stressed areas of the component. They can be easily incorporated into the plate-shaped element in a freely configurable form in terms of manufacturing technology. Due to the flat recesses, the net mass of the support arm is relatively low.
- the respective cladding element is circumferentially welded to the edge of the recess. Welding can be cost-effective and automated because the required weld size is small and each is a closed weld adapted to the contour of the recesses. Other joining techniques as welding are of course also possible.
- the support arm has a box-like profile with a plurality of walls, wherein at least one wall has a plate-shaped profile, which is made in the manner described above.
- the support arm may be part of a working equipment of a working machine and serve for the movement and for carrying a working tool.
- the support arm can also carry at least one support or other components.
- the support arm may be a boom or stick of an excavator, wherein the box-like profile of the support arm has a top flange, a bottom flange and side walls and wherein at least one belt and / or at least one side wall has a plate-shaped element of the type described above.
- the contour of the side walls is dimensioned along its length in addition to the expected component stresses.
- the support arm may be arranged on the uppercarriage or undercarriage of the excavator.
- the upper and the lower flange are arranged between the side walls of the support arm.
- bearing points for cylinders and linkages are integrated into the side walls.
- FIG. 1 By way of example, a working machine in the form of an excavator, generally designated 1 here, is shown.
- the inventive design of the support arm described below can generally be realized for any type of mobile or stationary machines; the in FIG. 1 illustrated excavator 1 represents only one embodiment.
- the excavator 1 has an undercarriage 2 and a superstructure 3 and is provided with a trained as a spoon 4 working tool.
- This bucket 4 is connected to the excavator 1 via a work equipment consisting of a plurality of support arms 5, namely to the uppercarriage 3 thereof.
- Other support arms may be individually or in a plurality of course also connected to the undercarriage 2, which is not shown in detail.
- the individual support arms 5 of the working equipment of the excavator are connected by means of pin bearings 6 with each other and with these moving hydraulic cylinders 7 and with the superstructure 3 and with the spoon 4.
- the support arms 5 and thus the working tool, for example, the spoon 4 are brought into the respective desired working position.
- Each support arm 5 consists in these embodiments of a box-like profile with a top flange 8, a bottom flange 9 and two with the straps 8, 9 connected side walls 10. These side walls 10 are dimensioned from their outer contour along their length adapted to the expected component stresses.
- the respective side wall 10 of a a uniform wall thickness having plate-shaped element 11, preferably a thick-walled sheet, which has a plurality of planar recesses 12.
- These recesses 12 are of different shape, in such a way that their shape is adapted to the expected component stresses.
- the respective side wall 10 preferably consists of a one-piece plate-shaped element 11, but a division of the side wall 10 (with the same wall thickness) may be desirable for reasons of handling, but not for adaptation to component stresses, if the length of the components becomes too long.
- the two side walls 10 each consist of a plate-shaped element 11 with recesses 12, and the top flange 8 and the bottom flange 9 are arranged between the two side walls 10 and welded thereto.
- bearings 13 for bolt bearings are preferably arranged on the side walls 10.
- FIG. 2 illustrated support arm 5 represents only one embodiment; Of course, the shapes of the support arms 5 differ from each other, depending on the specific function of the respective support arm has (see different design of the support arms 5 in FIG. 1 ). It is essential, however, that the walls consist of at least one plate-shaped element 11 with a uniform wall thickness with at least one recess 12, of which at least one recess with a thin-walled relative to the plate-shaped element 11 Cladding sheet 14 ( Fig. 3 ) is closed. Unlike in FIG. 2 shown, instead of the side walls 10 and in addition or only the straps 8, 9 consist of plate-shaped elements 11 with at least one recess 12 and at least one thin-walled cladding panel 14. In principle, it is also possible that only one side wall 10 or even one belt 8, 9 consists of at least one plate-shaped element 11 with at least one recess 12 and at least one thin-walled lining sheet.
- one or more of the recesses 12 are closed with a cladding element 14.
- This cladding element 14 is preferably made of a thin-walled relative to the plate-shaped member 11 sheet metal and is adapted from its outer contour to the contour of the corresponding recesses 12 and circumferentially attached to the edge of the recesses 12, namely, for example, welded.
- the cladding element 14 is disposed and secured within the contour of the recess on the plate-shaped element 11.
- all recesses 12 may be provided with a cladding element 14 or only a few, at least one.
- These cladding elements 14 made of thin-walled sheet metal contribute only to a small extent to the load capacity of the support arm 5. They can be inexpensively and automatically fastened to the plate-shaped element 11 by means of thin, closed welds without complicated reworking.
- an inventive support arm 5 is not only suitable as part of Working equipment of an excavator, but basically for each arm of any machine. These brackets can be connected to any part of the machine and carry both tools, as well as supports or other components, even if they are not shown in the drawing. According to further embodiments of the invention, walls with plate-shaped elements of the type described above can also form a support arm without a box-like profile.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Shovels (AREA)
- Body Structure For Vehicles (AREA)
- Jib Cranes (AREA)
Description
Die Erfindung betrifft einen Tragarm an einer Arbeitsmaschine mit den Merkmalen des Oberbegriffes des Patentanspruches 1.The invention relates to a support arm on a work machine with the features of the preamble of claim 1.
Arbeitsmaschinen, und zwar sowohl bewegliche, wie Bagger, Radlader, Traktoren, Telehandler oder dergleichen, als auch stationäre, wie Krane, weisen Tragarme unterschiedlicher Art auf, die einzeln oder in Kombination ein Arbeitswerkzeug, eine Abstützung oder andere Bauteile tragen oder bewegen und diese mit der Arbeitsmaschine verbinden. Diese Tragarme unterschiedlicher Länge und Gestalt sind oft gelenkig untereinander, mit den sie bewegenden Antrieben und mit der Maschine, dem Arbeitswerkzeug, der Abstützung oder anderen Bauteilen verbunden. Die Tragarme bestehen in der Regel aus einem kastenartigen Profil, welches durch Wände, beispielsweise Ober- und Untergurte sowie Seitenwände, gebildet wird. Auf oder in den Wänden sind Aufnahmepunkte für Bolzenlagerungen angeschweißt, über die die Tragarme untereinander, die Tragarme mit den Antrieben, die Tragarme mit der Arbeitsmaschine sowie die Tragarme mit dem Arbeitswerkzeug, der Abstützung oder anderen Bauteilen verbunden sind. Die Wände sind üblicherweise Schweißkonstruktionen, die aus Blechen mit homogener, aber unterschiedlicher Dicke zusammengesetzt sind, wobei ihre Kontur entlang ihrer Länge an die zu erwartenden Beanspruchungen angepasst dimensioniert ist.Work machines, both mobile, such as excavators, wheel loaders, tractors, telehandlers or the like, as well as stationary, such as cranes, have support arms of different types, individually or in combination carry or move a working tool, a support or other components and with connect the work machine. These brackets of different length and shape are often hinged to each other, with the moving drives and connected to the machine, the working tool, the support or other components. The support arms are usually made of a box-like profile, which is formed by walls, such as upper and lower straps and side walls. On or in the walls receiving points for bolt bearings are welded, via which the support arms are connected to each other, the support arms with the drives, the support arms with the working machine and the support arms with the working tool, the support or other components. The walls are usually welded constructions, which are composed of sheets of homogeneous, but different thickness, with their contour along their length dimensioned adapted to the expected stresses.
Mit diesen bekannten Tragarm-Schweißkonstruktionen ist es zwar möglich, eine erwünschte, möglichst geringe Eigenmasse zu realisieren, welche den Beanspruchungsverlauf des jeweiligen Tragarmes berücksichtigt, jedoch ist die Herstellung eines solchen Tragarmes aufgrund der hohen Anzahl von Schweißnähten zur Verbindung der verschieden dicken Bleche kostenaufwändig. Außerdem sind die Schweißnähte durch die hohe dynamische Belastung an einer Arbeitsmaschine sowohl in ihrer Ausführung als auch bei der Prüfung aufwändig.With these known support arm welded constructions, it is indeed possible to realize a desired, the lowest possible intrinsic mass, which takes into account the stress profile of the respective support arm, however, the production of such a support arm is costly due to the large number of welds for connecting the different thickness sheets. In addition, the welds are due to the high dynamic load on a working machine, both in their execution and during the test consuming.
Aus
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Aufgabe der Erfindung ist es, einen Tragarm der vorbeschriebenen Art zu schaffen, der den zu erwartenden Bauteilbeanspruchungen in hohem Maße folgt, eine möglichst geringe Eigenmasse aufweist und mit möglichst geringem Aufwand herstellbar ist.The object of the invention is to provide a support arm of the type described, which follows the expected component stresses to a high degree, one possible has low intrinsic mass and can be produced with the least possible effort.
Diese Aufgabe wird bei einem Tragarm der eingangs bezeichneten Art erfindungsgemäß durch die kennzeichnenden Merkmale aus Anspruch 1 gelöst.This object is achieved according to the invention in a support arm of the type described by the characterizing features of claim 1.
Vorteilhaft besteht die wenigstens eine Wand aus einem einstückigen plattenförmigen Element, aber in einer weiterenAdvantageously, the at least one wall consists of a one-piece plate-shaped element, but in a further
Ausgestaltung ist es möglich, dass die wenigstens eine Wand mehrere plattenförmige Elemente umfasst, die zusammengeschweißt sind. Bevorzugt ist, dass das wenigstens eine plattenförmige Element eine einheitliche Wanddicke aufweist. Um eine optimale Anpassung an die zu erwartenden Bauteilbeanspruchungen zu ermöglichen, ist dabei bevorzugt vorgesehen, dass das jeweilige plattenförmige Element mehrere Aussparungen aufweist, die je nach zu erwartendem Belastungsverlauf frei gestaltbar sind.Embodiment, it is possible that the at least one wall comprises a plurality of plate-shaped elements which are welded together. It is preferred that the at least one plate-shaped element has a uniform wall thickness. In order to enable optimum adaptation to the expected component stresses, it is preferably provided that the respective plate-shaped element has a plurality of recesses, which can be freely designed depending on the expected load profile.
Vorteilhaft wird somit ein Tragarm mit Wänden in der vorbeschriebenen Art vorgeschlagen, der durch die frei gestaltbare(n) Aussparung(en) in hohem Maße an den zu erwartenden Beanspruchungsverlauf des Bauteils angepasst ist. Die Aussparungen sind dementsprechend in gering beanspruchten Bereichen des Bauteils vorgesehen. Sie können fertigungstechnisch problemlos in frei gestaltbarer Form in das plattenförmige Element eingebracht werden. Aufgrund der flächigen Aussparungen ist die Eigenmasse des Tragarmes relativ gering.Advantageously, therefore, a support arm is proposed with walls in the manner described above, which is adapted by the freely configurable (s) recess (s) to a large extent to the expected stress profile of the component. The recesses are accordingly provided in low stressed areas of the component. They can be easily incorporated into the plate-shaped element in a freely configurable form in terms of manufacturing technology. Due to the flat recesses, the net mass of the support arm is relatively low.
Je nach Bedarf kann es vorteilhaft sein, dass nicht alle Aussparungen mit dünnwandigen Verkleidungselementen ausgefacht werden. Bevorzugt ist das jeweilige Verkleidungselement umlaufend an den Rand der Aussparung angeschweißt. Eine Schweißung kann kostengünstig und automatisiert angebracht werden, da die erforderliche Schweißnahtgröße gering ist und es sich jeweils um an die Kontur der Aussparungen angepasste geschlossene Schweißnähte handelt. Andere Verbindungstechniken als Schweißen sind selbstverständlich auch möglich.Depending on requirements, it may be advantageous that not all recesses are filled with thin-walled cladding elements. Preferably, the respective cladding element is circumferentially welded to the edge of the recess. Welding can be cost-effective and automated because the required weld size is small and each is a closed weld adapted to the contour of the recesses. Other joining techniques as welding are of course also possible.
Vorteilhaft hat der Tragarm ein kastenartiges Profil mit mehreren Wänden, wobei wenigstens eine Wand ein plattenförmiges Profil aufweist, das in der vorbeschriebenen Art gefertigt ist.Advantageously, the support arm has a box-like profile with a plurality of walls, wherein at least one wall has a plate-shaped profile, which is made in the manner described above.
Der Tragarm kann Teil einer Arbeitsausrüstung einer Arbeitsmaschine sein und zur Bewegung und zum Tragen eines Arbeitswerkzeuges dienen. Andererseits kann der Tragarm auch mindestens eine Abstützung oder andere Bauteile tragen.The support arm may be part of a working equipment of a working machine and serve for the movement and for carrying a working tool. On the other hand, the support arm can also carry at least one support or other components.
Der Tragarm kann ein Ausleger oder Stiel eines Baggers sein, wobei das kastenartige Profil des Tragarmes einen Obergurt, einen Untergurt und Seitenwände aufweist und wobei wenigstens ein Gurt und/oder wenigstens eine Seitenwand ein plattenförmiges Element vorstehend beschriebener Art aufweist.The support arm may be a boom or stick of an excavator, wherein the box-like profile of the support arm has a top flange, a bottom flange and side walls and wherein at least one belt and / or at least one side wall has a plate-shaped element of the type described above.
Vorteilhaft ist die Kontur der Seitenwände entlang ihrer Länge zusätzlich an die zu erwartenden Bauteilbeanspruchungen angepasst dimensioniert. Der Tragarm kann an dem Oberwagen oder dem Unterwagen des Baggers angeordnet sein.Advantageously, the contour of the side walls is dimensioned along its length in addition to the expected component stresses. The support arm may be arranged on the uppercarriage or undercarriage of the excavator.
Bevorzugt sind der Ober- und der Untergurt zwischen den Seitenwänden des Tragarmes angeordnet. Bei dieser Gestaltung ist dann ferner vorzugsweise vorgesehen, dass Lagerstellen für Zylinder und Anlenkungen in die Seitenwände integriert sind.Preferably, the upper and the lower flange are arranged between the side walls of the support arm. In this design, it is further preferably provided that bearing points for cylinders and linkages are integrated into the side walls.
Die Erfindung ist nachstehend anhand der Zeichnung beispielhaft näher erläutert. Diese zeigt in:
- Fig. 1
- eine Prinzipdarstellung einer Arbeitsmaschine in Form eines Baggers,
- Fig. 2
- in perspektivischer Darstellung einen erfindungsgemäß gestalteten Tragarm und
- Fig. 3
- einen Teilquerschnitt des Tragarmes nach
Figur 2 .
- Fig. 1
- a schematic diagram of a working machine in the form of an excavator,
- Fig. 2
- in a perspective view of an inventively designed support arm and
- Fig. 3
- a partial cross section of the support arm to
FIG. 2 ,
In
Der Bagger 1 weist einen Unterwagen 2 und einen Oberwagen 3 auf und ist mit einem als Löffel 4 ausgebildeten Arbeitswerkzeug versehen. Dieser Löffel 4 ist über eine Arbeitsausrüstung, die aus einer Mehrzahl von Tragarmen 5 besteht, mit dem Bagger 1, und zwar mit dem Oberwagen 3 desselben, verbunden. Andere Tragarme können einzeln oder in einer Mehrzahl selbstverständlich auch mit dem Unterwagen 2 verbunden sein, was nicht im Einzelnen dargestellt ist.The excavator 1 has an undercarriage 2 and a superstructure 3 and is provided with a trained as a spoon 4 working tool. This bucket 4 is connected to the excavator 1 via a work equipment consisting of a plurality of
Die einzelnen Tragarme 5 der Arbeitsausrüstung des Baggers sind mittels Bolzenlagerungen 6 untereinander und mit diese bewegenden Hydraulikzylindern 7 sowie mit dem Oberwagen 3 und mit dem Löffel 4 verbunden. Durch Verstellung der Hydraulikzylinder 7 können die Tragarme 5 und damit das Arbeitswerkzeug, beispielhaft der Löffel 4, in die jeweils gewünschte Arbeitsposition gebracht werden.The individual support
Wesentlich ist un die Gestaltung der Tragarme 5, die in den
Jeder Tragarm 5 besteht bei diesen Ausführungsbeispielen aus einem kastenartigen Profil mit einem Obergurt 8, einem Untergurt 9 und zwei mit den Gurten 8, 9 verbundenen Seitenwänden 10. Diese Seitenwände 10 sind von ihrer äußeren Kontur her entlang ihrer Länge an die zu erwartenden Bauteilbeanspruchungen angepasst dimensioniert.Each
Dazu ist beim Ausführungsbeispiel nach
Bei der Ausführungsform nach
Der in
Wie aus
Natürlich ist die Erfindung nicht auf die dargestellten Ausführungsbeispiele beschränkt. Weitere Ausgestaltungen sind möglich, ohne den Grundgedanken zu verlassen. So eignet sich ein erfindungsgemäßer Tragarm 5 nicht nur als Teil der Arbeitsausrüstung eines Baggers, sondern grundsätzlich für jeden Tragarm einer beliebigen Arbeitsmaschine. Diese Tragarme können mit jedem beliebigen Teil der Maschine verbunden sein und sowohl Arbeitswerkzeuge, als auch Abstützungen oder andere Bauteile tragen, auch wenn diese zeichnerisch nicht dargestellt sind. Nach weiteren Ausgestaltungen der Erfindung können auch Wände mit plattenförmigen Elementen der vorbeschriebenen Art ohne ein kastenartiges Profil einen Tragarm bilden.Of course, the invention is not limited to the illustrated embodiments. Further embodiments are possible without departing from the basic idea. Thus, an
Claims (8)
- Support arm on a work machine comprising at least one wall comprising at least one plate-shaped element, wherein the at least one plate-shaped element (11) has at least one planar cut-out (12) adapted according to the stresses expected to be placed on the component, wherein at least one cut-out (12) is closed off by a lining element (14) which is thin-walled compared to the plate-shaped element (11), characterised in that the at least one lining element (14) is arranged inside the cut-out (12) of the plate-shaped wall (10) and the at least one lining element (14) is secured, in particular welded, circumferentially around the edge of the cut-out (12).
- Support arm according to claim 1, characterised in that the at least one wall (10) consists of a one-piece plate-shaped element (11).
- Support arm according to either claim 1 or claim 2, characterised in that the at least one plate-shaped element (11) has a uniform wall thickness.
- Support arm according to one or more of claims 1 to 3, characterised in that the at least one plate-shaped element (11) comprises a plurality of cut-outs (12).
- Support arm according to one or more of claims 1 to 4, characterised in that the support arm has a box-shaped cross-section consisting of several walls, wherein at least one wall (10) comprises a plate-shaped element (11).
- Support arm according to claim 5, characterised in that the support arm is part of the operating equipment of a work machine which is used for moving and supporting a work tool (4).
- Support arm according to claim 6, characterised in that the support arm is a jib or a boom of an excavator, wherein the box-shaped cross-section of the support arm has an upper flange (8), a lower flange (9) and side walls (10) and wherein at least one flange (8, 9) and/or at least one side wall (10) comprises a plate-shaped element (11).
- Support arm according to claim 7, characterised in that the contour of the side walls (10), along their length, is also dimensioned appropriately for the stresses expected to be placed on the component.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006005892A DE102006005892A1 (en) | 2006-02-09 | 2006-02-09 | Support arm for a work machine |
PCT/EP2006/012150 WO2007090452A1 (en) | 2006-02-09 | 2006-12-16 | Cantilever arm for a working machine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1984574A1 EP1984574A1 (en) | 2008-10-29 |
EP1984574B1 true EP1984574B1 (en) | 2016-03-23 |
Family
ID=37814186
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06829677.1A Active EP1984574B1 (en) | 2006-02-09 | 2006-12-16 | Cantilever arm for a working machine |
Country Status (5)
Country | Link |
---|---|
US (1) | US20090223093A1 (en) |
EP (1) | EP1984574B1 (en) |
JP (1) | JP5014354B2 (en) |
DE (1) | DE102006005892A1 (en) |
WO (1) | WO2007090452A1 (en) |
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DE202010003617U1 (en) * | 2009-06-19 | 2010-10-28 | Liebherr-Hydraulikbagger Gmbh | excavator boom |
JP5314625B2 (en) * | 2010-03-08 | 2013-10-16 | 日立建機株式会社 | Working arm for construction machinery |
US20140056677A1 (en) * | 2011-04-20 | 2014-02-27 | Hitachi Construction Machinery Co., Ltd. | Boom for construction machine |
US9290363B2 (en) | 2011-07-21 | 2016-03-22 | Manitowoc Crane Companies, Llc | Tailor welded panel beam for construction machine and method of manufacturing |
US9200424B2 (en) * | 2011-09-20 | 2015-12-01 | Deere & Company | Boom apparatus with sandwiched knuckle body |
US9121163B2 (en) * | 2011-09-20 | 2015-09-01 | Deere & Company | Exoskeleton boom structure |
ITMI20120206A1 (en) * | 2012-02-14 | 2013-08-15 | Cifa Spa | SEGMENT OF AN ARTICULATED ARM AND ARTICULATED ARM INCLUDING THE SEGMENT |
CN102587669B (en) * | 2012-03-21 | 2015-02-18 | 中联重科股份有限公司 | Cantilever crane and pump truck |
US10362738B2 (en) * | 2015-09-10 | 2019-07-30 | Komatsu Ltd. | Work vehicle |
DE102016112748A1 (en) * | 2016-07-12 | 2018-01-18 | Schwing Gmbh | Large manipulator with weight-optimized articulated mast |
GB2557934B (en) * | 2016-12-16 | 2021-10-06 | Bamford Excavators Ltd | Arm assembly |
JP6917022B2 (en) * | 2017-01-31 | 2021-08-11 | 株式会社タグチ工業 | Construction machinery arm |
DE202017104032U1 (en) * | 2017-05-31 | 2018-09-18 | Liebherr-Werk Biberach Gmbh | Structure for a crane and similar machines, as well as a crane with such a structure |
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US2048561A (en) * | 1936-07-21 | Dipper handle fob dredges | ||
US790478A (en) * | 1905-01-28 | 1905-05-23 | Vulcan Iron Works Company | Boom for excavators. |
US1688664A (en) * | 1926-08-18 | 1928-10-23 | Commw Steel | Dipper handle |
US1974458A (en) * | 1932-10-19 | 1934-09-25 | Gen Steel Castings Corp | Dipper handle |
US2446410A (en) * | 1943-11-27 | 1948-08-03 | Kibbey W Couse | Combination pry-and-boom structure |
US3055459A (en) * | 1956-01-23 | 1962-09-25 | Los Altos Engineering Co | Lifting equipment |
US3283464A (en) * | 1960-05-10 | 1966-11-08 | Litzka Franz | Honeycomb girders and method for making same |
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US3902295A (en) * | 1974-05-28 | 1975-09-02 | Caterpillar Tractor Co | Boom construction and method for making same |
US4016688A (en) * | 1975-05-27 | 1977-04-12 | Fmc Corporation | Extensible crane boom structure |
US4003168A (en) * | 1975-06-27 | 1977-01-18 | Walter Kidde & Company, Inc. | Crane boom of trapezoidal boom sections having reinforcing rings |
US4147263A (en) * | 1977-01-06 | 1979-04-03 | Lull Engineering Company, Inc. | High lift loader with extended transfer |
US4111320A (en) * | 1977-03-23 | 1978-09-05 | The Warner & Swasey Company | Material handling apparatus having means for connecting material handling tool with a boom |
US4337601A (en) * | 1980-04-24 | 1982-07-06 | Harnischfeger Corporation | High-strength light-weight boom section for telescopic crane boom |
US5176491A (en) * | 1991-06-18 | 1993-01-05 | Case Corporation | Overcenter backhoe apparatus |
JP3109137B2 (en) * | 1991-06-26 | 2000-11-13 | 東レ株式会社 | Aromatic polyester composition |
JPH06220884A (en) * | 1993-01-21 | 1994-08-09 | Yanmar Diesel Engine Co Ltd | Boom structure for backhoe |
US5595471A (en) * | 1994-11-28 | 1997-01-21 | Caterpillar Inc. | Linkage arrangement |
US6106217A (en) * | 1998-08-14 | 2000-08-22 | Caterpillar Inc. | Lift arm arrangement of a construction machine |
JP3691750B2 (en) * | 2000-11-13 | 2005-09-07 | 株式会社クボタ | Swivel work machine |
DE10257041B3 (en) * | 2002-12-06 | 2004-08-19 | Terex Germany Gmbh & Co. Kg | Profile for backhoe bucket and bucket equipment of an excavator and method of manufacturing the same |
US6837446B1 (en) * | 2003-01-16 | 2005-01-04 | Sprayer Specialties, Inc. | Unitary boom structure |
JP4695355B2 (en) * | 2004-07-15 | 2011-06-08 | 新日本製鐵株式会社 | Boom / arm member for construction machine with excellent weld fatigue strength and method for manufacturing the same |
EP2118553A4 (en) * | 2007-02-09 | 2014-04-16 | Ind Origami Inc | Load-bearing three-dimensional structure |
-
2006
- 2006-02-09 DE DE102006005892A patent/DE102006005892A1/en not_active Withdrawn
- 2006-12-16 EP EP06829677.1A patent/EP1984574B1/en active Active
- 2006-12-16 WO PCT/EP2006/012150 patent/WO2007090452A1/en active Application Filing
- 2006-12-16 JP JP2008553630A patent/JP5014354B2/en not_active Expired - Fee Related
- 2006-12-16 US US12/278,828 patent/US20090223093A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
JP2009526148A (en) | 2009-07-16 |
DE102006005892A1 (en) | 2007-08-23 |
WO2007090452A1 (en) | 2007-08-16 |
US20090223093A1 (en) | 2009-09-10 |
EP1984574A1 (en) | 2008-10-29 |
JP5014354B2 (en) | 2012-08-29 |
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