EP0955415A4 - HYDRAULIC EXCAVATOR - Google Patents

HYDRAULIC EXCAVATOR

Info

Publication number
EP0955415A4
EP0955415A4 EP98945533A EP98945533A EP0955415A4 EP 0955415 A4 EP0955415 A4 EP 0955415A4 EP 98945533 A EP98945533 A EP 98945533A EP 98945533 A EP98945533 A EP 98945533A EP 0955415 A4 EP0955415 A4 EP 0955415A4
Authority
EP
European Patent Office
Prior art keywords
working machine
hydraulic shovel
boom
earth
excavation
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.)
Withdrawn
Application number
EP98945533A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0955415A1 (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 EP0955415A1 publication Critical patent/EP0955415A1/en
Publication of EP0955415A4 publication Critical patent/EP0955415A4/en
Withdrawn legal-status Critical Current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)
EP98945533A 1997-10-01 1998-09-30 HYDRAULIC EXCAVATOR Withdrawn EP0955415A4 (en)

Applications Claiming Priority (3)

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

Publications (2)

Publication Number Publication Date
EP0955415A1 EP0955415A1 (en) 1999-11-10
EP0955415A4 true EP0955415A4 (en) 2001-01-17

Family

ID=17462431

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98945533A Withdrawn EP0955415A4 (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
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

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−
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 01 30 January 1998 (1998-01-30) *
See also references of WO9916980A1 *

Also Published As

Publication number Publication date
NZ336119A (en) 2000-10-27
JP3681409B2 (ja) 2005-08-10
AU9280098A (en) 1999-04-23
AU735431B2 (en) 2001-07-05
WO1999016980A1 (fr) 1999-04-08
EP0955415A1 (en) 1999-11-10

Similar Documents

Publication Publication Date Title
EP0915208A4 (en) Collision avoidance device for a hydraulic excavator with a two-part arm
EP0979901A4 (en) DEVICE FOR REGULATING THE EXCAVATION DEPTH OF A CONSTRUCTION MACHINE
JPH0794737B2 (ja) 油圧掘削機における直線掘削制御装置
KR101755424B1 (ko) 유압 셔블의 유압 구동장치
JPS6338504B2 (ja)
EP0605724A4 (en) DEVICE FOR PASSING INTO THE END OPERATING MODE FOR A HYDRAULIC EXCAVATOR.
GB2327078A (en) Method to prevent the underdigging of a work machine
EP0955415A4 (en) HYDRAULIC EXCAVATOR
US4218837A (en) High lift hydraulic system for an excavator
US6618658B1 (en) Control apparatus for a hydraulic excavator
JP2001090120A (ja) 自動運転ショベル
CN207959323U (zh) 一种挖掘装载一体机回转限位装置
JPH07109746A (ja) 作業機の運転室干渉防止装置
JPH11210514A (ja) 建設機械の原動機制御装置
GB2574444A (en) Face shovel and method of operation
JPS62284836A (ja) 油圧シヨベルの油圧回路
JPH11181821A (ja) 干渉防止機能付き建設作業機械
JP2697499B2 (ja) 建設機械の自動掘削制御装置
KR20090071168A (ko) 굴삭기용 유압장치
JP2996762B2 (ja) 作業機干渉防止回路
JPS5952031A (ja) 掘削作業車
JPH0720353U (ja) 埋設物破壊防止装置付きパワ−ショベル
JP2000336690A (ja) 建設機械の領域制限掘削制御装置
JPH0527556Y2 (ja)
JP2685871B2 (ja) 側溝掘フロントの油圧回路

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19990602

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB IT SE

A4 Supplementary search report drawn up and despatched

Effective date: 20001201

AK Designated contracting states

Kind code of ref document: A4

Designated state(s): DE FR GB IT SE

RIC1 Information provided on ipc code assigned before grant

Free format text: 7E 02F 3/43 A, 7E 02F 9/20 B

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20060817