EP4379147A4 - Arbeitsmaschine - Google Patents

Arbeitsmaschine

Info

Publication number
EP4379147A4
EP4379147A4 EP23775000.5A EP23775000A EP4379147A4 EP 4379147 A4 EP4379147 A4 EP 4379147A4 EP 23775000 A EP23775000 A EP 23775000A EP 4379147 A4 EP4379147 A4 EP 4379147A4
Authority
EP
European Patent Office
Prior art keywords
working machine
working
machine
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.)
Pending
Application number
EP23775000.5A
Other languages
English (en)
French (fr)
Other versions
EP4379147A1 (de
Inventor
Yuya Tsujimoto
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 EP4379147A1 publication Critical patent/EP4379147A1/de
Publication of EP4379147A4 publication Critical patent/EP4379147A4/de
Pending legal-status Critical Current

Links

Classifications

    • 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
    • E02F9/18—Counterweights
    • 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)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Component Parts Of Construction Machinery (AREA)
EP23775000.5A 2022-03-23 2023-03-23 Arbeitsmaschine Pending EP4379147A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022046570 2022-03-23
PCT/JP2023/011401 WO2023182406A1 (ja) 2022-03-23 2023-03-23 作業機

Publications (2)

Publication Number Publication Date
EP4379147A1 EP4379147A1 (de) 2024-06-05
EP4379147A4 true EP4379147A4 (de) 2025-08-06

Family

ID=88101628

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23775000.5A Pending EP4379147A4 (de) 2022-03-23 2023-03-23 Arbeitsmaschine

Country Status (5)

Country Link
US (1) US20240376689A1 (de)
EP (1) EP4379147A4 (de)
JP (1) JP7547686B2 (de)
CN (1) CN117897536A (de)
WO (1) WO2023182406A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7398422B2 (ja) * 2021-12-03 2023-12-14 株式会社小松製作所 作業機械

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0655966U (ja) * 1993-01-19 1994-08-02 日立建機株式会社 建設機械等におけるカウンタウエイトの取り付け装置
US20130001492A1 (en) * 2011-06-30 2013-01-03 Hitachi Construction Machinery Co., Ltd. Hydraulic circuit for counterweight attaching/detaching device
WO2016072975A1 (en) * 2014-11-04 2016-05-12 Volvo Construction Equipment Ab Push block module for front end of motor graders
US10301797B2 (en) * 2015-06-18 2019-05-28 Caterpillar Sarl Counterweight supporting structure for construction machine
US10407283B2 (en) * 2015-03-02 2019-09-10 Caterpillar Sarl Moving device for counterweight
CN212926240U (zh) * 2020-05-10 2021-04-09 杭州富阳保利铸造有限公司 一种挖掘机配重的固定支架
JP2021147963A (ja) * 2020-03-23 2021-09-27 日立建機株式会社 作業機械

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4072324A (en) * 1976-08-19 1978-02-07 Caterpillar Tractor Co. Shear pin assembly for counterweights
JPH0163356U (de) * 1987-10-15 1989-04-24
JPH053568Y2 (de) * 1987-10-19 1993-01-28
JP2797790B2 (ja) * 1991-11-20 1998-09-17 日産自動車株式会社 産業車両用カウンタウエイトの取付構造
JPH0633485A (ja) * 1992-07-17 1994-02-08 Hitachi Constr Mach Co Ltd 作業機
JP2922778B2 (ja) 1994-03-29 1999-07-26 日立建機株式会社 作業機のカウンタウエイト脱着装置
JPH09124285A (ja) * 1995-10-27 1997-05-13 Mitsubishi Heavy Ind Ltd 産業機械のウエイト着脱装置
JPH09209407A (ja) * 1996-02-06 1997-08-12 Yutani Heavy Ind Ltd カウンタウエイトの取付方法
CN202370028U (zh) * 2011-11-01 2012-08-08 三一重机有限公司 一种挖掘机及其配重定位结构
JP2015059343A (ja) * 2013-09-19 2015-03-30 コベルコ建機株式会社 作業機械
JP6497737B2 (ja) * 2015-06-18 2019-04-10 キャタピラー エス エー アール エル 建設機械におけるカウンタウエイト支持構造
CN210887394U (zh) * 2019-09-16 2020-06-30 江苏蓝力重工科技有限公司 具有回转快速平稳功能的挖掘机配重机构
JP2021147994A (ja) * 2020-03-16 2021-09-27 日立建機株式会社 作業機械
JP7167077B2 (ja) * 2020-03-16 2022-11-08 日立建機株式会社 作業機械
JP7167076B2 (ja) * 2020-03-16 2022-11-08 日立建機株式会社 作業機械

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0655966U (ja) * 1993-01-19 1994-08-02 日立建機株式会社 建設機械等におけるカウンタウエイトの取り付け装置
US20130001492A1 (en) * 2011-06-30 2013-01-03 Hitachi Construction Machinery Co., Ltd. Hydraulic circuit for counterweight attaching/detaching device
WO2016072975A1 (en) * 2014-11-04 2016-05-12 Volvo Construction Equipment Ab Push block module for front end of motor graders
US10407283B2 (en) * 2015-03-02 2019-09-10 Caterpillar Sarl Moving device for counterweight
US10301797B2 (en) * 2015-06-18 2019-05-28 Caterpillar Sarl Counterweight supporting structure for construction machine
JP2021147963A (ja) * 2020-03-23 2021-09-27 日立建機株式会社 作業機械
CN212926240U (zh) * 2020-05-10 2021-04-09 杭州富阳保利铸造有限公司 一种挖掘机配重的固定支架

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2023182406A1 *

Also Published As

Publication number Publication date
WO2023182406A1 (ja) 2023-09-28
JP7547686B2 (ja) 2024-09-09
CN117897536A (zh) 2024-04-16
EP4379147A1 (de) 2024-06-05
JPWO2023182406A1 (de) 2023-09-28
US20240376689A1 (en) 2024-11-14

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RIC1 Information provided on ipc code assigned before grant

Ipc: E02F 9/18 20060101AFI20250703BHEP

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