EP0670391B1 - Bewegliches, kompaktes Vielzweck-Arbeitsgerät - Google Patents

Bewegliches, kompaktes Vielzweck-Arbeitsgerät Download PDF

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Publication number
EP0670391B1
EP0670391B1 EP95830070A EP95830070A EP0670391B1 EP 0670391 B1 EP0670391 B1 EP 0670391B1 EP 95830070 A EP95830070 A EP 95830070A EP 95830070 A EP95830070 A EP 95830070A EP 0670391 B1 EP0670391 B1 EP 0670391B1
Authority
EP
European Patent Office
Prior art keywords
hinged
segment
rotatable platform
lever
pivot
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.)
Expired - Lifetime
Application number
EP95830070A
Other languages
English (en)
French (fr)
Other versions
EP0670391A1 (de
Inventor
Riccardo Magni
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.)
Manitou Costruzioni Industriali SRL
Original Assignee
Manitou Costruzioni Industriali SRL
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 Manitou Costruzioni Industriali SRL filed Critical Manitou Costruzioni Industriali SRL
Publication of EP0670391A1 publication Critical patent/EP0670391A1/de
Application granted granted Critical
Publication of EP0670391B1 publication Critical patent/EP0670391B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E02F3/30—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
    • E02F3/32—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 working downwardly and towards the machine, e.g. with backhoes
    • 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
    • E02F3/307—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 the boom and the dipper-arm being connected so as to permit relative movement in more than one plane
    • 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
    • E02F3/308—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 working outwardly

Definitions

  • the invention relates to a compact multiuse mobile work tool.
  • FR-A-2694316 discloses a multiuse mobile work tool comprising a frame provided with wheels, a rotatable platform hinged on the frame about an axis which is practically perpendicular to a rest plane of the wheels and a motor.
  • a cockpit for an operator is located on the rotatable platform.
  • An articulated manoeuvring arm is predisposed on the rotatable platform by a side of the cockpit.
  • the manoeuvring arm is constituted by a first segment and a second segment which are hinged one to another.
  • the first segment also is hinged, at a first end thereof, at a front end of the rotatable platform.
  • the second segment is provided at a free end thereof with a rapid universal attachment for tools and equipment.
  • the rapid universal attachment is provided with hydraulically-activated organs for manoeuvring the tools and equipment in an articulation plane of the manoeuvring arm.
  • the first segment is activated to rotate about a pivot, by means of which pivot the first segment is hinged to the rotatable platform by a mechanical lever system hydraulically commanded.
  • the lever system comprises a lever and a connecting member.
  • the lever is hinged at a first end thereof to the rotatable platform.
  • the connecting member is hinged at a first end to a second end of the lever and at a second end to the first segment, at a predetermined distance from a hinge axis of the first segment to the rotatable platform.
  • a hydraulic cylinder has a bottom end which is hinged to the rotatable platform and a stem end which is hinged at the end of the lever. The bottom end of the cylinder is located in an advanced position to the pivot by which the lever is hinged to the platform.
  • a drawback of FR-A-2694316 is that the multiuse mobile work tool is relatively bulky.
  • the prior art teaches compact multiuse mobile work tools exhibiting masses such as to enable them to be used inside buildings for all principal operations for which vehicles designed for use on building sites are designated.
  • mini-loader blades mini-excavators and mini-elevators, but as yet no compact work tools considered to be multi-use in the sense that they are able, when apposite work tools are applied, to perform the tasks usually associated with building sites.
  • 1 denotes a frame provided with two pairs of wheels 2.
  • a pair of tracks might be fitted instead of the wheels.
  • a rotatable platform 3 is pivoted about a vertical axis perpendicular to a plane identified by the axes of the wheels 2.
  • a motor 4 located posteriorly thereon; a driver's cockpit 5 for the operator, and a manoeuvring arm 6, situated in a decentralized position by the side of the cockpit 5.
  • the manoeuvring arm 6 is constituted by two principal segments 7 and 8, which are hinged one to the other at respective ends thereof.
  • the first segment 7 exhibits a first end hinged by a pivot 17 at a front end of the rotatable platform 3.
  • the second segment 8 is instead provided, at a free end thereof, with a rapid universal attachment 9 for tools or equipment, said rapid universal attachment 9 being is equipped with hydraulically-activated organs 10 for manoeuvring tools and equipment in the articulation plane of the arm 6.
  • the first segment 7 is brought to rotate in two directions about the pivot 17 by a mechanical lever system comprising:
  • the lever system constituted by the lever 11 and the connecting member 12, constitutes together with the first segment 7 and the rotatable platform 3 a four-bar hinge wherein the fixed member is constituted by the rotatable platform 3 itself.
  • the entire lever system is proportioned such that the lever 11 exhibits a shorter length than the connecting member 12, which connecting member 12 pivot axis to the first segment 7, in the position represented in figure 1, is located at a predetermined distance from the axis of the pivot 17.
  • Said pivot 17 is located in an advanced position and situated inferiorly to (and is parallel to) the axis of the pivot 14 by means of which the lever is hinged to the rotatable platform 3.
  • a complete series of tools and equipment can be coupled to the rapid universal attachment 9.
  • a loading scuttle 20 can be applied to the rapid universal attachment 9.
  • the machine, fitted with the loading scuttle 20, can function as a self-propelled loader of the type known as skid steer loader.
  • the loading scuttle 20 manoeuvrability is achieved through the arm 6. Horizontal movements are obtained by movements of the entire vehicle on the wheels 2 (or tracks), combined with rotation movements of the rotatable platform 3.
  • the machine becomes a mini-excavator; also in this case the manoeuvring of the bucket 21 is realized by means of the manoeuvring arm 6.
  • the ability of the rotatable platform 3 to rotate about a vertical axis with respect to the frame 1 allows operation in every direction, at 360 degrees, without having recourse to movements of the chuck 2. Thanks to its conformation and to the conformation of the mechanism producing the rotation of the first segment first segment 7, the manoeuvring arm 6 has a high manoeuvrability in a vertical plane.
  • the rotation of the whole rotatable platform 3 about a vertical axis means that the arm 6 can operate in any direction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Mechanical Control Devices (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Manipulator (AREA)

Claims (3)

  1. Bewegliches, kompaktes Vielzweck-Arbeitsgerät, enthaltend:
    einen Rahmen (1), der mit Rädern (2) versehen ist;
    eine drehbare Plattform (3), angelenkt an den genannten Rahmen (1) um eine Achse, welche praktisch lotrecht zu der Auflageebene der genannten Räder (2) verläuft;
    einen Motor (4);
    einen Führersitz (5) für den Bedienenden, angeordnet auf der genannten drehbaren Plattform (3);
    einen Gelenkausleger (6), angeordnet an der drehbaren Plattform (3) in einer dezentralisierten Position auf einer Seite des Führersitzes (5); wobei der genannte Gelenkausleger (6) aus einem ersten Segment (7) und einem zweiten Segment (8) gebildet wird, welches eines an das andere angelenkt ist; wobei das genannte erste Segment (7) ebenfalls mit einem ersten Ende an ein vorderes Ende der drehbaren Plattform (3) angelenkt ist; und wobei das genannte zweite Segment (8) an einem freien Ende mit einer Universal-Schnellkupplung (9) für Werkzeuge und Ausrüstungen versehen ist, welche Universal-Schnellkupplung (9) mit hydraulisch getriebenen Elementen (10) zum Betätigen der genannten Werkzeuge und der Ausrüstung auf der Gelenkebene des Auslegers (6) ausgestattet ist; bei welchem das erste Segment (7) um einen Zapfen (17) zum Drehen gebracht wird, durch welchen Zapfen (17) das genannte erste Segment (7) an die drehbare Plattform (3) angelenkt ist, und zwar durch ein hydraulisch getriebenes, mechanisches Hebelsystem, welches wie folgt enthält:
    einen Hebel (11), der mit einem ersten Ende an die drehbare Plattform (3) angelenkt ist;
    ein Verbindungselement (12), angelenkt mit einem ersten Ende an das zweite Ende des Hebels (11) und mit einem zweiten Ende an das erste Segment (7), und zwar mit einem bestimmten Abstand von einer Gelenkachse des ersten Segmentes (7) an der drehbaren Plattform (3);
    einen Hydraulikzylinder (13), der ein Bodenende aufweist, welches an die drehbare Plattform (3) angelenkt ist, und ein Kolbenende, das an einen Punkt des Hebels (11) angelenkt ist;
    dadurch gekennzeichnet, dass
    der Motor (4) hinten auf der genannten drehbaren Plattform (3) angeordnet ist;
    das Kolbenende des Zylinders (13) an einem mittleren Punkt des Hebels (11) angelenkt ist;
    ein Zapfen (15), durch welchen der Hebel (11) an die Plattform (3) angelenkt ist, sich in einer vorgeschobenen Position zu einem Punkt befindet, an welchem das Bodenende des Zylinders (13) an die Plattform (3) angelenkt ist.
  2. Vielzweck-Arbeitsgerät nach Patentanspruch 1, dadurch gekennzeichnet, dass der Zapfen (17), durch welchen das erste Segment (7) an die drehbare Plattform (3) angelenkt ist, eine horizontale Achse aufweist und parallel zu und unterhalb eines Zapfens (15) angeordnet ist, durch welchen der Hebel (11) an die drehbare Plattform (3) angelenkt ist.
  3. Vielzweck-Arbeitsgerät nach Patentanspruch 2, dadurch gekennzeichnet, dass der genannte Hebel (11) in seiner Länge kürzer ist als das genannte Verbindungselement (12).
EP95830070A 1994-03-04 1995-03-03 Bewegliches, kompaktes Vielzweck-Arbeitsgerät Expired - Lifetime EP0670391B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1994MO000031A IT1268911B1 (it) 1994-03-04 1994-03-04 Macchina operatrice polivalente compatta.
ITMO940031 1994-03-04

Publications (2)

Publication Number Publication Date
EP0670391A1 EP0670391A1 (de) 1995-09-06
EP0670391B1 true EP0670391B1 (de) 2000-02-09

Family

ID=11385588

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95830070A Expired - Lifetime EP0670391B1 (de) 1994-03-04 1995-03-03 Bewegliches, kompaktes Vielzweck-Arbeitsgerät

Country Status (4)

Country Link
EP (1) EP0670391B1 (de)
DE (1) DE69514945T2 (de)
ES (1) ES2143027T3 (de)
IT (1) IT1268911B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7383906B2 (en) 2002-08-29 2008-06-10 Jlg Industries, Inc. Rotatable and telescopic work machine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2365008A1 (fr) * 1976-09-17 1978-04-14 Pingon Manubat Sa Engin de terrassement tel que pelle hydraulique
IT1108073B (it) * 1978-07-10 1985-12-02 Brefer Spa Escavatore a bracci articolati
DE69213215T2 (de) * 1992-05-04 1997-01-23 Manitou Costr Ind Srl Beweglicher Mehrzweck-Frontlader und Bagger
FR2694316A1 (fr) * 1992-07-31 1994-02-04 Pel Job Groupe Chargeur-excavateur-élévateur.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7383906B2 (en) 2002-08-29 2008-06-10 Jlg Industries, Inc. Rotatable and telescopic work machine

Also Published As

Publication number Publication date
ITMO940031A0 (it) 1994-03-04
ITMO940031A1 (it) 1995-09-04
IT1268911B1 (it) 1997-03-13
ES2143027T3 (es) 2000-05-01
DE69514945D1 (de) 2000-03-16
EP0670391A1 (de) 1995-09-06
DE69514945T2 (de) 2000-08-17

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