EP3859100A4 - WORK MACHINERY - Google Patents

WORK MACHINERY Download PDF

Info

Publication number
EP3859100A4
EP3859100A4 EP19865937.7A EP19865937A EP3859100A4 EP 3859100 A4 EP3859100 A4 EP 3859100A4 EP 19865937 A EP19865937 A EP 19865937A EP 3859100 A4 EP3859100 A4 EP 3859100A4
Authority
EP
European Patent Office
Prior art keywords
work machinery
machinery
work
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
EP19865937.7A
Other languages
German (de)
French (fr)
Other versions
EP3859100A1 (en
EP3859100B1 (en
Inventor
Kaori Takahashi
Shigeya Tada
Tsutomu Iida
Jyunichi KOUDA
Hiromitsu Kaniwa
Masahiko Watanabe
Kazuya Hirata
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.)
Hitachi Construction Machinery Co Ltd
Original Assignee
Hitachi Construction Machinery Co Ltd
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 Hitachi Construction Machinery Co Ltd filed Critical Hitachi Construction Machinery Co Ltd
Publication of EP3859100A1 publication Critical patent/EP3859100A1/en
Publication of EP3859100A4 publication Critical patent/EP3859100A4/en
Application granted granted Critical
Publication of EP3859100B1 publication Critical patent/EP3859100B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/08—Wrecking of buildings
    • E04G23/082—Wrecking of buildings using shears, breakers, jaws and the like
    • 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
    • E02F3/302—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 an additional link
    • 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
    • E02F3/369—Devices to connect parts of a boom or an 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
    • E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
    • E02F3/965—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements of metal-cutting or concrete-crushing implements
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2278—Hydraulic circuits
    • E02F9/2292—Systems with two or more pumps
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2278—Hydraulic circuits
    • E02F9/2296—Systems with a variable displacement pump

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Shovels (AREA)
  • Working Measures On Existing Buildindgs (AREA)
EP19865937.7A 2018-09-28 2019-05-21 Work machine Active EP3859100B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018185207A JP7088801B2 (en) 2018-09-28 2018-09-28 Work machine
PCT/JP2019/020100 WO2020066120A1 (en) 2018-09-28 2019-05-21 Work machine

Publications (3)

Publication Number Publication Date
EP3859100A1 EP3859100A1 (en) 2021-08-04
EP3859100A4 true EP3859100A4 (en) 2022-07-06
EP3859100B1 EP3859100B1 (en) 2025-11-05

Family

ID=69949908

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19865937.7A Active EP3859100B1 (en) 2018-09-28 2019-05-21 Work machine

Country Status (5)

Country Link
EP (1) EP3859100B1 (en)
JP (1) JP7088801B2 (en)
CN (1) CN111801476B (en)
SG (1) SG11202008412SA (en)
WO (1) WO2020066120A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7401418B2 (en) * 2020-09-28 2023-12-19 日立建機株式会社 construction machinery
JP2024046704A (en) * 2022-09-23 2024-04-04 日立建機株式会社 Construction machinery work equipment

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005105520A (en) * 2003-09-26 2005-04-21 Kobelco Contstruction Machinery Ltd Boom of working machine and its assembling/disassembling method
JP2008274662A (en) * 2007-04-27 2008-11-13 Hitachi Constr Mach Co Ltd Work machine boom
JP2011256626A (en) * 2010-06-10 2011-12-22 Hitachi Constr Mach Co Ltd Work machine, dismounted boom placing table used for the same and work machine dismantle method
JP2014101665A (en) * 2012-11-19 2014-06-05 Hitachi Constr Mach Co Ltd Work front for work machine and transportation method thereof
DE102014013734A1 (en) * 2014-09-22 2016-03-24 Schwing Gmbh articulated mast

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0596154U (en) * 1992-06-02 1993-12-27 油谷重工株式会社 Fixture for transportation of split boom
JPH09227073A (en) * 1996-02-20 1997-09-02 Tadano Ltd Mobile crane
JP2006274725A (en) 2005-03-30 2006-10-12 Shin Caterpillar Mitsubishi Ltd Working machine
AT508171A1 (en) * 2009-05-07 2010-11-15 Epsilon Kran Gmbh CRANE WITH TOTPOT TURNING
CN102616674A (en) * 2012-03-28 2012-08-01 李军希 Boom with folding structure
CN105621284A (en) * 2014-10-31 2016-06-01 无锡晟欧船舶设备有限公司 Crane boom connecting structure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005105520A (en) * 2003-09-26 2005-04-21 Kobelco Contstruction Machinery Ltd Boom of working machine and its assembling/disassembling method
JP2008274662A (en) * 2007-04-27 2008-11-13 Hitachi Constr Mach Co Ltd Work machine boom
JP2011256626A (en) * 2010-06-10 2011-12-22 Hitachi Constr Mach Co Ltd Work machine, dismounted boom placing table used for the same and work machine dismantle method
JP2014101665A (en) * 2012-11-19 2014-06-05 Hitachi Constr Mach Co Ltd Work front for work machine and transportation method thereof
DE102014013734A1 (en) * 2014-09-22 2016-03-24 Schwing Gmbh articulated mast

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2020066120A1 *

Also Published As

Publication number Publication date
CN111801476A (en) 2020-10-20
EP3859100A1 (en) 2021-08-04
CN111801476B (en) 2022-04-05
JP7088801B2 (en) 2022-06-21
EP3859100B1 (en) 2025-11-05
JP2020056157A (en) 2020-04-09
WO2020066120A1 (en) 2020-04-02
SG11202008412SA (en) 2021-04-29

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