FR2422775A1 - Mechanical excavating shovel for dredgers - has fast acting pivot moving to dumping position for ejecting spoil - Google Patents

Mechanical excavating shovel for dredgers - has fast acting pivot moving to dumping position for ejecting spoil

Info

Publication number
FR2422775A1
FR2422775A1 FR7828890A FR7828890A FR2422775A1 FR 2422775 A1 FR2422775 A1 FR 2422775A1 FR 7828890 A FR7828890 A FR 7828890A FR 7828890 A FR7828890 A FR 7828890A FR 2422775 A1 FR2422775 A1 FR 2422775A1
Authority
FR
France
Prior art keywords
dredgers
spoil
ejecting
dumping position
fast acting
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
FR7828890A
Other languages
French (fr)
Other versions
FR2422775B1 (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.)
Liebherr Hydraulikbagger GmbH
Original Assignee
Liebherr Hydraulikbagger GmbH
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 Liebherr Hydraulikbagger GmbH filed Critical Liebherr Hydraulikbagger GmbH
Publication of FR2422775A1 publication Critical patent/FR2422775A1/en
Application granted granted Critical
Publication of FR2422775B1 publication Critical patent/FR2422775B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
    • E02F3/407—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with ejecting or other unloading device

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Operation Control Of Excavators (AREA)

Abstract

The mechanical excavating shovel for dredgers can pivot in its working or dumping position using a hydraulic cylinder. The shovel (1) is joined to the arm of the machine (10) and the hydraulic jack (9) by the two arms (3, 8) of the bridle junction. Movement of the jack (9) upon the arm (3) moves the friction roller at the end of the arm along the ejector (2). The ejector is curved at one end (5) so that the articulated turner (4) turns the bucket with greater movement than that of the jack.
FR7828890A 1977-10-11 1978-10-10 Mechanical excavating shovel for dredgers - has fast acting pivot moving to dumping position for ejecting spoil Granted FR2422775A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19777731421 DE7731421U1 (en) 1977-10-11 1977-10-11 BUCKET FOR EXCAVATORS

Publications (2)

Publication Number Publication Date
FR2422775A1 true FR2422775A1 (en) 1979-11-09
FR2422775B1 FR2422775B1 (en) 1983-05-06

Family

ID=6683459

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7828890A Granted FR2422775A1 (en) 1977-10-11 1978-10-10 Mechanical excavating shovel for dredgers - has fast acting pivot moving to dumping position for ejecting spoil

Country Status (2)

Country Link
DE (1) DE7731421U1 (en)
FR (1) FR2422775A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2713681A1 (en) * 1993-12-14 1995-06-16 Morin Freres Control mechanism for digger bucket ejector blade

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4230225A1 (en) * 1992-09-10 1994-03-17 Weiss Gmbh & Co Leonhard Trough-shaped shovel tipping to unload - has heavy lining lifting off inner surface under gravity to aid unloading

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2764306A (en) * 1953-04-16 1956-09-25 L A Young Spring & Wire Corp Back hoe excavator
FR1355045A (en) * 1962-02-06 1964-03-13 Int Standard Electric Corp Converters of digital information to analog values
US3642160A (en) * 1970-11-27 1972-02-15 Allis Chalmers Mfg Co Loader with ejector-type bucket
FR2241661A1 (en) * 1973-08-23 1975-03-21 Caterpillar Tractor Co
AU466450B2 (en) * 1970-11-16 1975-10-30 Kastman Kodak Company Polyolefin compositions

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2764306A (en) * 1953-04-16 1956-09-25 L A Young Spring & Wire Corp Back hoe excavator
FR1355045A (en) * 1962-02-06 1964-03-13 Int Standard Electric Corp Converters of digital information to analog values
AU466450B2 (en) * 1970-11-16 1975-10-30 Kastman Kodak Company Polyolefin compositions
US3642160A (en) * 1970-11-27 1972-02-15 Allis Chalmers Mfg Co Loader with ejector-type bucket
FR2241661A1 (en) * 1973-08-23 1975-03-21 Caterpillar Tractor Co

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2713681A1 (en) * 1993-12-14 1995-06-16 Morin Freres Control mechanism for digger bucket ejector blade

Also Published As

Publication number Publication date
DE7731421U1 (en) 1978-01-26
FR2422775B1 (en) 1983-05-06

Similar Documents

Publication Publication Date Title
JPS55108539A (en) Excavator with working tool position indicating mechanism
GB1448843A (en) Excavator incorporating a pivotably mounted implement
CA2014164A1 (en) Excavator with extendable outer arm including synchronizing movements for the bucket tilting actuator
GB1435294A (en) Ripper-excavator bucket assemblies
GB989580A (en) Improvements in or relating to hydraulically actuated shovel excavators
SE7901783L (en) LINKING MECHANISM FOR EXCAVATORS
GB1509334A (en) Grabs
GB1011993A (en) Means for cleaning the surface of a compactor wheel on a tractor
GB1157488A (en) Material Handling Machine.
US2813645A (en) Earth moving apparatus or the like
FR2422775A1 (en) Mechanical excavating shovel for dredgers - has fast acting pivot moving to dumping position for ejecting spoil
GB1410532A (en) Articulated ladder construction for cutterhead dredge
GB1494383A (en) Engineering machines
ES516696A0 (en) MACHINE FOR EARTH MOVING.
GB1218818A (en) Loader apparatus
GB1311331A (en) Back hoe orgrader
GB1182710A (en) Improvements in Mechanical Earth Working Machines
FR2365008A1 (en) Two piece excavator boom - has adjustable piece at elbow joint enabling position jib fulcrum and boom length to be varied
GB755898A (en) Improvements in or relating to buckets for mechanical digging machines
ATE117034T1 (en) EXCAVATORS, ESPECIALLY BUCKET EXCAVATORS.
GB1138399A (en) Hydraulically-operated mechanisms suitable for use in digging machines
GB1113015A (en) Improvements relating to crowd shovel excavators
GB1200133A (en) Mobile hydraulic shovel
GB1197821A (en) A Loader Bucket having an Ejector Mechanism.
GB762754A (en) Improvements in and relating to excavating and like machines

Legal Events

Date Code Title Description
ST Notification of lapse