EP0399043A4 - Working machine for construction vehicles and method of operating same - Google Patents

Working machine for construction vehicles and method of operating same

Info

Publication number
EP0399043A4
EP0399043A4 EP19880910129 EP88910129A EP0399043A4 EP 0399043 A4 EP0399043 A4 EP 0399043A4 EP 19880910129 EP19880910129 EP 19880910129 EP 88910129 A EP88910129 A EP 88910129A EP 0399043 A4 EP0399043 A4 EP 0399043A4
Authority
EP
European Patent Office
Prior art keywords
end portion
boom
boom member
working machine
construction vehicles
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
EP19880910129
Other languages
English (en)
Other versions
EP0399043B1 (fr
EP0399043A1 (fr
Inventor
Noboru Kanayama
Hisashi Fukumoto
Kuniharu Fujii
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.)
Komatsu Ltd
Original Assignee
Komatsu 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
Priority claimed from JP29946687A external-priority patent/JPH0830347B2/ja
Priority claimed from JP29946587A external-priority patent/JPH0830346B2/ja
Priority claimed from JP1823188A external-priority patent/JPH028419A/ja
Application filed by Komatsu Ltd filed Critical Komatsu Ltd
Publication of EP0399043A1 publication Critical patent/EP0399043A1/fr
Publication of EP0399043A4 publication Critical patent/EP0399043A4/en
Application granted granted Critical
Publication of EP0399043B1 publication Critical patent/EP0399043B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E02F9/22—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
    • 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
    • E02F3/32—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
    • 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
    • E02F9/2239—Control of flow rate; Load sensing arrangements using two or more pumps with cross-assistance

Abstract

Bras articulé pour engins de construction, pouvant être replié entièrement lorsqu'il est au repos et converti aisément dans un état de fonctionnement lorsqu'on veut l'utiliser, sans qu'il soit nécessaire d'utiliser un outillage spécial; on décrit de même un procédé d'utilisation de l'engin de construction. Ce dernier est pourvu d'une flèche divisée en un premier élément et un deuxième élément de flèche, d'un bras relié de manière pivotante à l'extrémité avant du deuxième élément de flèche, d'un godet relié de manière pivotante à l'extrémité avant du bras, et d'une pluralité de cylindres hydrauliques qui commandent ces éléments. Le premier élément de flèche (12) est supporté de manière pivotante sur un côté de la partie d'extrémité de base sur une partie déterminée (13) du châssis (10), et au niveau d'une extrémité avant (15) sur un côté de la partie d'extrémité de base du deuxième élément de flèche (14). Le premier élément de flèche (12) peut être tourné verticalement par un premier cylindre de flèche (17) qui est supporté de manière pivotante au niveau de sa partie d'extrémité de base sur une autre partie déterminée (18) du châssis, et au niveau de sa partie d'extrémité avant sur une partie déterminée (20) de la partie d'extrémité avant du premier élément de flèche, la position du deuxième élément de flèche par rapport au premier élément de flèche étant maintenue par un organe de retenue (A).
EP88910129A 1987-11-26 1988-11-25 Procede d'utilisation d'un bras articule pour engins de construction Expired - Lifetime EP0399043B1 (fr)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
JP299466/87 1987-11-26
JP29946687A JPH0830347B2 (ja) 1987-11-26 1987-11-26 油圧式掘削機の作業機姿勢変更装置及び方法
JP299465/87 1987-11-26
JP29946587A JPH0830346B2 (ja) 1987-11-26 1987-11-26 油圧式掘削機の作業機姿勢変更装置及び方法
JP18231/88 1988-01-28
JP1823188A JPH028419A (ja) 1988-01-28 1988-01-28 油圧掘削機の作業機収納方法
PCT/JP1988/001198 WO1989004894A1 (fr) 1987-11-26 1988-11-25 Bras articule pour engins de construction et procede d'utilisation

Publications (3)

Publication Number Publication Date
EP0399043A1 EP0399043A1 (fr) 1990-11-28
EP0399043A4 true EP0399043A4 (en) 1991-09-25
EP0399043B1 EP0399043B1 (fr) 1996-01-10

Family

ID=27282137

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88910129A Expired - Lifetime EP0399043B1 (fr) 1987-11-26 1988-11-25 Procede d'utilisation d'un bras articule pour engins de construction

Country Status (3)

Country Link
EP (1) EP0399043B1 (fr)
DE (1) DE3854897T2 (fr)
WO (1) WO1989004894A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3313784B2 (ja) * 1992-09-30 2002-08-12 株式会社小松製作所 建設機械の作業機装置
US5423655A (en) * 1993-01-14 1995-06-13 Kabushiki Kaisha Komatsu Seisakusho Working machine for hydraulic excavator
FR2718769B1 (fr) * 1994-04-13 1996-05-31 Gibert Pierre Jean Marie Ensemble compact de deux bras articulés, dont l'extrémité libre est équipée d'un porte équipement, destiné à des véhicules de manutention, et terrassement.
JP3446847B2 (ja) * 1994-11-08 2003-09-16 株式会社小松製作所 作業車両

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1185523B (de) * 1961-04-29 1965-01-14 Liebherr Hans Abbaugeraet fuer Ton
DE2459489A1 (de) * 1974-07-18 1976-01-29 Krone Bernhard Gmbh Maschf Planiergeraet

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1202279A (en) * 1966-11-18 1970-08-12 Massey Ferguson Services Nv Improvements in material handling devices which include a pivotable boom
JPS4879101U (fr) * 1971-12-28 1973-09-28
JPS5920443Y2 (ja) * 1979-07-27 1984-06-14 株式会社豊田自動織機製作所 スキツドステアシヨベルにおけるリフトア−ム
JPS6042123Y2 (ja) * 1980-04-17 1985-12-23 株式会社小松製作所 油圧式掘削機
JPS62103860U (fr) * 1985-12-20 1987-07-02

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1185523B (de) * 1961-04-29 1965-01-14 Liebherr Hans Abbaugeraet fuer Ton
DE2459489A1 (de) * 1974-07-18 1976-01-29 Krone Bernhard Gmbh Maschf Planiergeraet

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO8904894A1 *

Also Published As

Publication number Publication date
EP0399043B1 (fr) 1996-01-10
EP0399043A1 (fr) 1990-11-28
DE3854897T2 (de) 1996-08-14
WO1989004894A1 (fr) 1989-06-01
DE3854897D1 (de) 1996-02-22

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