FR2248376A1 - Soil shifting machine shovel - has hydraulic valve to connect each lifting motor to respective shovel actuating motor - Google Patents

Soil shifting machine shovel - has hydraulic valve to connect each lifting motor to respective shovel actuating motor

Info

Publication number
FR2248376A1
FR2248376A1 FR7434562A FR7434562A FR2248376A1 FR 2248376 A1 FR2248376 A1 FR 2248376A1 FR 7434562 A FR7434562 A FR 7434562A FR 7434562 A FR7434562 A FR 7434562A FR 2248376 A1 FR2248376 A1 FR 2248376A1
Authority
FR
France
Prior art keywords
shovel
motor
connect
actuating motor
hydraulic valve
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
FR7434562A
Other languages
French (fr)
Other versions
FR2248376B1 (en
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.)
Massey Ferguson Services NV
Original Assignee
Massey Ferguson Services NV
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 GB4825473A external-priority patent/GB1474380A/en
Application filed by Massey Ferguson Services NV filed Critical Massey Ferguson Services NV
Publication of FR2248376A1 publication Critical patent/FR2248376A1/en
Application granted granted Critical
Publication of FR2248376B1 publication Critical patent/FR2248376B1/fr
Granted 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
    • E02F9/2004—Control mechanisms, e.g. control levers
    • 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
    • E02F3/36—Component parts
    • E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
    • E02F3/422—Drive systems for bucket-arms, front-end loaders, dumpers or the like

Abstract

The machine with hydraulic motor(s) for rearward and forward pivoting of the shovel relative to the lifter arm(s) has a unit working with a hydraulic press. medium and has an auxiliary valve which can be actuated to connect each lifting motor with the respective shovel actuating motor so that the lifting motor urges each lifter arm to pivot downward when each shovel actuating motor is actuated, to pivot the shovel back. Preferably each lifter motor and the shovel actuating motor(s) are hydraulic rams. The desing is such that during normal operation, as the need arises, the auxiliary valve can be operated by hand.
FR7434562A 1973-10-17 1974-10-15 Soil shifting machine shovel - has hydraulic valve to connect each lifting motor to respective shovel actuating motor Granted FR2248376A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB4825473A GB1474380A (en) 1973-10-17 1973-10-17 Loader vehicles
GB5294473 1973-11-14

Publications (2)

Publication Number Publication Date
FR2248376A1 true FR2248376A1 (en) 1975-05-16
FR2248376B1 FR2248376B1 (en) 1977-03-25

Family

ID=26266236

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7434562A Granted FR2248376A1 (en) 1973-10-17 1974-10-15 Soil shifting machine shovel - has hydraulic valve to connect each lifting motor to respective shovel actuating motor

Country Status (2)

Country Link
DE (1) DE2448816A1 (en)
FR (1) FR2248376A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2673285A1 (en) * 1991-02-22 1992-08-28 Genitronic Weighing method and device for a loader with hydraulic compensations

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4054083A (en) * 1975-07-14 1977-10-18 Caterpillar Tractor Co. Dual lever control mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2673285A1 (en) * 1991-02-22 1992-08-28 Genitronic Weighing method and device for a loader with hydraulic compensations

Also Published As

Publication number Publication date
DE2448816A1 (en) 1975-04-24
FR2248376B1 (en) 1977-03-25

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Legal Events

Date Code Title Description
ST Notification of lapse