AU735431B2 - Hydraulic excavator - Google Patents

Hydraulic excavator Download PDF

Info

Publication number
AU735431B2
AU735431B2 AU92800/98A AU9280098A AU735431B2 AU 735431 B2 AU735431 B2 AU 735431B2 AU 92800/98 A AU92800/98 A AU 92800/98A AU 9280098 A AU9280098 A AU 9280098A AU 735431 B2 AU735431 B2 AU 735431B2
Authority
AU
Australia
Prior art keywords
working equipment
boom
angle
blade
hydraulic excavator
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.)
Ceased
Application number
AU92800/98A
Other languages
English (en)
Other versions
AU9280098A (en
Inventor
Tooru Kobayashi
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 AU9280098A publication Critical patent/AU9280098A/en
Application granted granted Critical
Publication of AU735431B2 publication Critical patent/AU735431B2/en
Anticipated expiration legal-status Critical
Ceased 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
    • E02F9/20—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)
AU92800/98A 1997-10-01 1998-09-30 Hydraulic excavator Ceased AU735431B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP26872197 1997-10-01
JP9-268721 1997-10-01
PCT/JP1998/004402 WO1999016980A1 (fr) 1997-10-01 1998-09-30 Pelle hydraulique

Publications (2)

Publication Number Publication Date
AU9280098A AU9280098A (en) 1999-04-23
AU735431B2 true AU735431B2 (en) 2001-07-05

Family

ID=17462431

Family Applications (1)

Application Number Title Priority Date Filing Date
AU92800/98A Ceased AU735431B2 (en) 1997-10-01 1998-09-30 Hydraulic excavator

Country Status (5)

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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2917591B1 (en) 2012-11-07 2018-10-17 Parker Hannifin Corporation Smooth control of hydraulic actuator
JP7201877B2 (ja) * 2020-03-24 2023-01-10 株式会社日立建機ティエラ 建設機械

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06313329A (ja) * 1993-04-30 1994-11-08 Hitachi Constr Mach Co Ltd 作業機の制御装置

Family Cites Families (3)

* 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−
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06313329A (ja) * 1993-04-30 1994-11-08 Hitachi Constr Mach Co Ltd 作業機の制御装置

Also Published As

Publication number Publication date
NZ336119A (en) 2000-10-27
EP0955415A4 (en) 2001-01-17
JP3681409B2 (ja) 2005-08-10
AU9280098A (en) 1999-04-23
WO1999016980A1 (fr) 1999-04-08
EP0955415A1 (en) 1999-11-10

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Legal Events

Date Code Title Description
FGA Letters patent sealed or granted (standard patent)