EP0640724A3 - Construction machine, especially excavator. - Google Patents

Construction machine, especially excavator. Download PDF

Info

Publication number
EP0640724A3
EP0640724A3 EP94112370A EP94112370A EP0640724A3 EP 0640724 A3 EP0640724 A3 EP 0640724A3 EP 94112370 A EP94112370 A EP 94112370A EP 94112370 A EP94112370 A EP 94112370A EP 0640724 A3 EP0640724 A3 EP 0640724A3
Authority
EP
European Patent Office
Prior art keywords
construction machine
excavator
cylinder unit
centre
piston
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.)
Granted
Application number
EP94112370A
Other languages
German (de)
French (fr)
Other versions
EP0640724B1 (en
EP0640724A2 (en
Inventor
Ing Luis Haringer
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.)
Macmoter SpA
Original Assignee
Macmoter 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 Macmoter SpA filed Critical Macmoter SpA
Publication of EP0640724A2 publication Critical patent/EP0640724A2/en
Publication of EP0640724A3 publication Critical patent/EP0640724A3/en
Application granted granted Critical
Publication of EP0640724B1 publication Critical patent/EP0640724B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • E02F3/301—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
    • E02F3/30—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Shovels (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)

Abstract

An excavator 1 has a boom 14 which is composed of three arm pieces 15 to 17 which are each pivotable individually by means of an allocated piston/cylinder unit 23 to 25. The centre piston/cylinder unit 24 runs virtually completely within the centre arm piece 16 and in this way is largely protected from damage due to striking an obstacle. <IMAGE>
EP94112370A 1993-08-24 1994-08-08 Construction machine, especially excavator Expired - Lifetime EP0640724B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4328449 1993-08-24
DE4328449A DE4328449A1 (en) 1993-08-24 1993-08-24 Construction machine, in particular excavator vehicle

Publications (3)

Publication Number Publication Date
EP0640724A2 EP0640724A2 (en) 1995-03-01
EP0640724A3 true EP0640724A3 (en) 1995-07-19
EP0640724B1 EP0640724B1 (en) 1999-10-27

Family

ID=6495908

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94112370A Expired - Lifetime EP0640724B1 (en) 1993-08-24 1994-08-08 Construction machine, especially excavator

Country Status (4)

Country Link
EP (1) EP0640724B1 (en)
AT (1) ATE186089T1 (en)
DE (2) DE4328449A1 (en)
NO (1) NO943011L (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4798228B2 (en) * 2009-01-16 2011-10-19 コベルコ建機株式会社 Work machine boom

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1981002884A1 (en) * 1980-04-09 1981-10-15 Caterpillar Tractor Co Load carrying stucture and method of manufacture therefor
EP0226657A1 (en) * 1985-12-23 1987-07-01 Kabushiki Kaisha Komatsu Seisakusho Apparatus for operating working element of excavator
DE9003519U1 (en) * 1990-03-27 1990-07-12 Atlas Weyhausen GmbH, 2870 Delmenhorst Boom for a backhoe or similar

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3057494A (en) * 1959-01-30 1962-10-09 Wain Roy Corp Excavating apparatus
US3666124A (en) * 1970-10-15 1972-05-30 Wain Roy Lifting and excavating apparatus
DE8512238U1 (en) * 1985-04-25 1985-08-14 O & K Orenstein & Koppel Ag, 1000 Berlin Wheeled excavator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1981002884A1 (en) * 1980-04-09 1981-10-15 Caterpillar Tractor Co Load carrying stucture and method of manufacture therefor
EP0226657A1 (en) * 1985-12-23 1987-07-01 Kabushiki Kaisha Komatsu Seisakusho Apparatus for operating working element of excavator
DE9003519U1 (en) * 1990-03-27 1990-07-12 Atlas Weyhausen GmbH, 2870 Delmenhorst Boom for a backhoe or similar

Also Published As

Publication number Publication date
DE4328449A1 (en) 1995-03-02
EP0640724B1 (en) 1999-10-27
ATE186089T1 (en) 1999-11-15
NO943011D0 (en) 1994-08-15
EP0640724A2 (en) 1995-03-01
NO943011L (en) 1995-02-27
DE59408858D1 (en) 1999-12-02

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