EP1717378B1 - Erdbewegungsmaschine - Google Patents

Erdbewegungsmaschine Download PDF

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Publication number
EP1717378B1
EP1717378B1 EP05425274A EP05425274A EP1717378B1 EP 1717378 B1 EP1717378 B1 EP 1717378B1 EP 05425274 A EP05425274 A EP 05425274A EP 05425274 A EP05425274 A EP 05425274A EP 1717378 B1 EP1717378 B1 EP 1717378B1
Authority
EP
European Patent Office
Prior art keywords
earth moving
moving machine
articulated arm
chassis
zone
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.)
Not-in-force
Application number
EP05425274A
Other languages
English (en)
French (fr)
Other versions
EP1717378A1 (de
Inventor
Umberto Muraro
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.)
Komatsu Utility Europe SpA
Original Assignee
Komatsu Utility Europe SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Komatsu Utility Europe SpA filed Critical Komatsu Utility Europe SpA
Priority to AT05425274T priority Critical patent/ATE365833T1/de
Priority to DE602005001502T priority patent/DE602005001502T2/de
Priority to ES05425274T priority patent/ES2289684T3/es
Priority to EP05425274A priority patent/EP1717378B1/de
Publication of EP1717378A1 publication Critical patent/EP1717378A1/de
Application granted granted Critical
Publication of EP1717378B1 publication Critical patent/EP1717378B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • E02F3/382—Connections to the frame; Supports for booms or arms
    • E02F3/386—Connections to the frame; Supports for booms or arms the boom being laterally shiftable relative to the frame
    • 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 present invention relates to an earth moving machine of the type equipped with an articulated arm pivoted to the machine chassis.
  • the present invention is intended for application on the rear articulated arms of backhoe loaders, and on the articulated arms of excavators (of any size).
  • articulated arms normally consist of two members pivoted to one another at their ends, with one member pivoted to the chassis and the other bearing the working part 15 (for example a bucket).
  • articulated arms may comprise a plurality of members connected in series. All of the various members are driven by hydraulic actuators.
  • the first member has, across the main direction in which it extends, a substantially rectangular cross-section.
  • the cross-section of the first member reduces from the end pivoted to the chassis to the end to which the second member is pivoted, so as to reduce the projecting weight.
  • US Patent application No. 2002/0170212 discloses an earth moving machine according to the preamble of claim 1 a boom body in which each member presents an hollow long shape with a triangle cross section. The three sides of the boom are straight while the portion connecting the sides each other are arcuated in shape. With this structure, stress applied to each of the connecting portions is dispersed, the cross section performance required for a beam is secured and vertical rigidity of the boom member is enhanced. It is also disclosed a solution in which one connecting portion is formed by two arcuate portions connected to the sides and a flat portion connected between the two arcuate portions.
  • the technical need of the present invention is to provide an earth moving machine with an articulated arm that is less of an obstruction to the operator's view than happens in the machines known today.
  • the numeral 1 denotes as a whole an earth moving machine according to the present invention.
  • the present invention may be applied to earth moving machines 1 comprising a load-bearing chassis 2, on which a control position 3 is mounted for an operator (which may or may not be protected by a cab 4 as illustrated in the accompanying drawings).
  • the chassis 2 in turn, may consist of a single part ( Figures 1 - 3), or may be divided into two parts 2a, 2b placed one above the other, the upper part rotating relative to the lower part about a vertical axis of rotation ( Figures 4 - 6).
  • chassis 2 On the chassis 2 there are also drive means designed to allow the machine 1 to move relative to the ground, comprising an engine, wheels 5 (with rubber tyres, railway style, etc.) or tracks 6, and controls 7 located in the control position 3 (steering wheel, pedals, operating levers, etc.).
  • the machine 1 also comprises at least one articulated arm 8 which is in turn divided into a first member 9 and at least a second member 10.
  • the first member 9 extends, along its extension trajectory, from a first end 11, pivoted to the chassis 2, to a second end 12.
  • the second member 10 in turn has a first end 13 pivoted to the second end 12 of the first member 9 and a second end 14 which bears, directly or by means of additional members 10a ( Figures 5 and 6), a working part 15, such as a bucket.
  • the category of earth moving machines 1 described above includes backhoe loaders, in which the articulated arm 8 described is located on the back of the machine 1, and excavators (large, medium, mini, midi) in which the articulated arm 8 is located at a front zone of the machine 1.
  • the earth moving machine 1 also has a front arm 17 bearing a shovel 18.
  • the first member 9 it is possible to identify an upper zone 19 at least partly facing the control position 3 and a lower zone 20, at least partly facing the working part 15.
  • At least part of the first member 9 has, across the extension trajectory of said first member 9, a first width at its lower zone 20 and a second width, less than the first width, at its upper zone 19.
  • the entire first member 9 has the second width less than the first width (therefore, hereinafter reference will be made to this preferred embodiment).
  • said first part should be at the zone of the articulated arm 8 towards which the operator looks while working.
  • the first member 9 has a width which decreases from the lower zone 20 towards the upper zone 19.
  • the first member 9 has two substantially flat sides 21 extending between the upper zone 19 and the lower zone 20.
  • the sides 21 converge with one another at the upper zone 19 ( Figures 10 - 14).
  • the first member 9 has, perpendicular to its extension trajectory, a substantially trapezoidal cross-section.
  • the upper zone 19 of the first member 9 corresponds to the smaller base
  • the sides 21 correspond to the two sides of the trapezium.
  • the first member 9 has a cross-section which decreases from the first end 11 to the second end 12.
  • the first member 9 illustrated in the accompanying drawings is fork-shaped at its ends and is formed only by the two converging flat sides 21. Moreover, in an intermediate portion, the first member 9 has a fork-shaped projection 22 which allows the attachment of the driving actuators 16 ( Figure 1).
  • the articulated arm 8 is pivoted relative to the chassis 2. In particular it is pivoted at least according to a first, substantially vertical axis of rotation and according to a second, substantially horizontal axis of rotation.
  • the articulated arm 8 is pivoted not directly to the chassis 2, but instead to a supporting element 23 in turn slidably connected to the chassis 2 according to a substantially horizontal sliding axis transversal to a machine 1 longitudinal axis.
  • the present invention it is also possible to produce, in a similar way to that described above with regard to the first member 9, other members into which the articulated arm 8 of the earth moving machine 1 is divided.
  • the further a member is from the control position 3 the less benefit the present invention can provide.
  • the innovative transversally tapering shape of the first member 9 of an articulated arm 8 produced according to the present invention thanks to the innovative transversally tapering shape of the first member 9 of an articulated arm 8 produced according to the present invention, the zone of the first member 9 which in practice faces the operator is narrower that the known arms. As a result, the arm is less of an obstruction to the operator's view than known arms.
  • the width of the upper zone 19 of the first member 9 may also vary depending on production requirements. For example, in the case of the embodiment illustrated in Figures 1 to 3, the upper zone 19 of the first member 9 is "covered" by the relative actuator. Therefore, it is neither useful nor necessary to make the width of the first zone less than the width of the actuator (however, it should be noticed that in the earth moving machines 1 known today the actuator is always significantly narrower than the first member 9 of the articulated arm 8).
  • the present invention therefore brings important advantages, since it allows increased visibility for the operator in a simple way and without drawbacks.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Operation Control Of Excavators (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Glass Compositions (AREA)
  • Jib Cranes (AREA)
  • Manipulator (AREA)

Claims (9)

  1. Erdbewegungsmaschine, enthaltend:
    - ein Fahrgestell (2);
    - einen Steuerstand (3), montiert an dem Fahrgestell (2);
    - an dem Fahrgestell (2) montierte Antriebsmittel, um es der Maschine (1) zu ermöglichen, sich im Verhältnis zum Boden zu bewegen;
    - wenigstens einen Gelenkausleger (8), enthaltend ein erstes Glied (9), das sich entlang seiner Ausdehnungsbahn von einem ersten Ende (11) aus, das an das Fahrgestell (2) angelenkt ist, bis zu einem zweiten Ende (12) erstreckt, und wenigstens ein zweites Glied (10) mit einem ersten Ende (13), das an das zweite Ende (12) des ersten Gliedes (9) angelenkt ist, und einem zweiten Ende (14), welches ein Arbeitselement (15) trägt;
    - wobei das erste Glied (9) einen oberen Bereich (19) aufweist, der wenigstens teilweise dem Steuerstand (3) zugewandt ist, und einen unteren Bereich (20), sowie zwei im wesentlichen flache Seiten (21), die sich zwischen dem oberen Bereich (19) und dem unteren Bereich (20) erstrecken, wobei wenigstens ein erster Abschnitt des ersten Gliedes (9) lotrecht zu der Ausdehnungsbahn einen im wesentlichen trapezförmigen Querschnitt hat, der obere Bereich (19) der kleineren Basis des Trapezes und der untere Bereich (20) der grösseren Basis entspricht und die Seiten (21) den beiden Seiten des Trapezes entsprechen, so dass der genannte erste Abschnitt eine erste Breite an dem unteren Bereich (20) hat und eine zweite Breite, geringer als die erste Breite, an dem oberen Bereich (19), wobei die Erdbewegungsmaschine dadurch gekennzeichnet, ist, dass die Verbindungen zwischen den flachen Seiten (21) und den oberen und unteren Bereichen (19), (20) jede eine scharfe Kante beschreiben.
  2. Erdbewegungsmaschine nach Patentanspruch 1, dadurch gekennzeichnet, dass der erste Abschnitt des ersten Gliedes (9) dem gesamten ersten Glied (9) entspricht.
  3. Erdbewegungsmaschine nach einem beliebigen der vorstehenden Patentansprüche, dadurch gekennzeichnet, dass das erste Glied (9) einen Querschnitt aufweist, der von dem ersten Ende (11) zu dem zweiten Ende (12) hin abnimmt.
  4. Erdbewegungsmaschine nach einem beliebigen der vorstehenden Patentansprüche, dadurch gekennzeichnet, dass der Gelenkausleger (8) im Verhältnis zu dem Fahrgestell (2) wenigstens nach einer ersten, im wesentlichen vertikalen Drehachse und einer zweiten, im wesentlichen horizontalen Drehachse angelenkt ist.
  5. Erdbewegungsmaschine nach Patentanspruch 4, dadurch gekennzeichnet, dass der Gelenkausleger (8) an ein Halteelement (23) angelenkt ist, gleitbar angeschlossen an das Fahrgestell (2) nach einer im wesentlichen horizontalen Gleitachse quer zu einer Längsachse der Maschine (1).
  6. Erdbewegungsmaschine nach einem beliebigen der vorstehenden Patentansprüche, dadurch gekennzeichnet, dass der Gelenkausleger (8) eine Anzahl von Gliedern enthält, jedes in gleichartiger Weise hergestellt, wie das erste Glied (9) betreffend in jedem der vorstehenden Patentansprüche beansprucht wurde.
  7. Erdbewegungsmaschine nach einem beliebigen der vorstehenden Patentansprüche, dadurch gekennzeichnet, dass es sich um einen Tieflöffelbagger handelt, wobei der Gelenkausleger (8) an der Rückseite der Maschine (1) positioniert ist.
  8. Erdbewegungsmaschine nach einem jeden der vorstehenden Patentansprüche von 1 bis 7, dadurch gekennzeichnet, dass es sich um einen Bagger handelt, wobei der Gelenkausleger (8) in einem vorderen Bereich der Maschine (1) positioniert ist.
  9. Erdbewegungsmaschine nach einem jeden der vorstehenden Patentansprüche 1 bis 7, dadurch gekennzeichnet, dass es sich um einen Kleinbagger handelt, wobei der Gelenkausleger (8) in einem vorderen Bereich der Maschine (1) positioniert ist.
EP05425274A 2005-04-29 2005-04-29 Erdbewegungsmaschine Not-in-force EP1717378B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AT05425274T ATE365833T1 (de) 2005-04-29 2005-04-29 Erdbewegungsmaschine
DE602005001502T DE602005001502T2 (de) 2005-04-29 2005-04-29 Erdbewegungsmaschine
ES05425274T ES2289684T3 (es) 2005-04-29 2005-04-29 Maquina de movimiento de tierra.
EP05425274A EP1717378B1 (de) 2005-04-29 2005-04-29 Erdbewegungsmaschine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05425274A EP1717378B1 (de) 2005-04-29 2005-04-29 Erdbewegungsmaschine

Publications (2)

Publication Number Publication Date
EP1717378A1 EP1717378A1 (de) 2006-11-02
EP1717378B1 true EP1717378B1 (de) 2007-06-27

Family

ID=34979652

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05425274A Not-in-force EP1717378B1 (de) 2005-04-29 2005-04-29 Erdbewegungsmaschine

Country Status (4)

Country Link
EP (1) EP1717378B1 (de)
AT (1) ATE365833T1 (de)
DE (1) DE602005001502T2 (de)
ES (1) ES2289684T3 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202011100095U1 (de) 2011-05-02 2012-08-03 Kinshofer Gmbh Drehantrieb für Gelenkausleger von Kleinbaggern und dergleichen
DE102021106129A1 (de) 2021-03-12 2022-09-15 Wacker Neuson Linz Gmbh Mobile Arbeitsmaschine, insbesondere Bagger, mit einem Fahrzeugrahmen und einem Hubarm

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013225228A1 (de) * 2013-12-09 2015-06-11 Putzmeister Engineering Gmbh Knickmast, insbesondere für stationäre oder mobile Betonpumpen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19882547B4 (de) * 1997-07-15 2007-11-29 Komatsu Ltd. Ausleger eines Löffelbaggers und Herstellverfahren für diesen
GB2364042B (en) * 1997-07-15 2002-03-27 Komatsu Mfg Co Ltd A method for producing an arm of a working machine
GB2393708B (en) * 2002-10-01 2005-11-30 Bamford Excavators Ltd Excavating and loading machine
AU2004280583A1 (en) * 2003-10-03 2005-04-21 Michael T. Lumbers Multi-function work machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202011100095U1 (de) 2011-05-02 2012-08-03 Kinshofer Gmbh Drehantrieb für Gelenkausleger von Kleinbaggern und dergleichen
DE102021106129A1 (de) 2021-03-12 2022-09-15 Wacker Neuson Linz Gmbh Mobile Arbeitsmaschine, insbesondere Bagger, mit einem Fahrzeugrahmen und einem Hubarm

Also Published As

Publication number Publication date
ES2289684T3 (es) 2008-02-01
DE602005001502T2 (de) 2008-03-06
DE602005001502D1 (de) 2007-08-09
ATE365833T1 (de) 2007-07-15
EP1717378A1 (de) 2006-11-02

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