NZ336119A - Hydraulic excavator - Google Patents

Hydraulic excavator

Info

Publication number
NZ336119A
NZ336119A NZ336119A NZ33611998A NZ336119A NZ 336119 A NZ336119 A NZ 336119A NZ 336119 A NZ336119 A NZ 336119A NZ 33611998 A NZ33611998 A NZ 33611998A NZ 336119 A NZ336119 A NZ 336119A
Authority
NZ
New Zealand
Prior art keywords
working machine
boom
earth
excavation
depth
Prior art date
Application number
NZ336119A
Other languages
English (en)
Inventor
Tooru Kobayashi
Original Assignee
Hitachi Construction Machinery
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 filed Critical Hitachi Construction Machinery
Publication of NZ336119A publication Critical patent/NZ336119A/xx

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
    • E02F9/20—Drives; Control devices
    • E02F9/2025—Particular purposes of control systems not otherwise provided for
    • E02F9/2033—Limiting the movement of frames or implements, e.g. to avoid collision between implements and the cabin
    • 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
    • E02F9/2221—Control of flow rate; Load sensing arrangements
    • E02F9/2225—Control of flow rate; Load sensing arrangements using pressure-compensating valves
    • E02F9/2228—Control of flow rate; Load sensing arrangements using pressure-compensating valves including an electronic controller
    • 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
    • E02F9/2285—Pilot-operated systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Operation Control Of Excavators (AREA)
NZ336119A 1997-10-01 1998-09-30 Hydraulic excavator NZ336119A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP26872197 1997-10-01
PCT/JP1998/004402 WO1999016980A1 (fr) 1997-10-01 1998-09-30 Pelle hydraulique

Publications (1)

Publication Number Publication Date
NZ336119A true NZ336119A (en) 2000-10-27

Family

ID=17462431

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ336119A NZ336119A (en) 1997-10-01 1998-09-30 Hydraulic excavator

Country Status (5)

Country Link
EP (1) EP0955415A4 (xx)
JP (1) JP3681409B2 (xx)
AU (1) AU735431B2 (xx)
NZ (1) NZ336119A (xx)
WO (1) WO1999016980A1 (xx)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9897112B2 (en) 2012-11-07 2018-02-20 Parker-Hannifin Corporation Smooth control of hydraulic actuator
EP3974585B1 (en) * 2020-03-24 2024-01-17 Hitachi Construction Machinery Tierra Co., Ltd. Construction machine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5819827B2 (ja) * 1975-03-03 1983-04-20 株式会社クボタ ハイドソウチフセツノ ゼンセンカイガタバツクホ−
JP3246794B2 (ja) * 1993-04-30 2002-01-15 日立建機株式会社 作業機の制御装置
JP2793950B2 (ja) * 1993-10-12 1998-09-03 日立建機株式会社 作業機の運転室干渉防止装置
JPH09242110A (ja) * 1996-03-12 1997-09-16 Hitachi Constr Mach Co Ltd 油圧式建設機械の干渉防止装置

Also Published As

Publication number Publication date
EP0955415A4 (en) 2001-01-17
AU735431B2 (en) 2001-07-05
JP3681409B2 (ja) 2005-08-10
EP0955415A1 (en) 1999-11-10
AU9280098A (en) 1999-04-23
WO1999016980A1 (fr) 1999-04-08

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