FR2367153A2 - Retropelleteuse a depassement du point mort - Google Patents

Retropelleteuse a depassement du point mort

Info

Publication number
FR2367153A2
FR2367153A2 FR7714547A FR7714547A FR2367153A2 FR 2367153 A2 FR2367153 A2 FR 2367153A2 FR 7714547 A FR7714547 A FR 7714547A FR 7714547 A FR7714547 A FR 7714547A FR 2367153 A2 FR2367153 A2 FR 2367153A2
Authority
FR
France
Prior art keywords
backhoe
overcentre
boom
boom cylinder
pair
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.)
Pending
Application number
FR7714547A
Other languages
English (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.)
Case LLC
Original Assignee
JI Case Co
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 US05/730,598 external-priority patent/US4074821A/en
Application filed by JI Case Co filed Critical JI Case Co
Publication of FR2367153A2 publication Critical patent/FR2367153A2/fr
Pending 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
    • E02F3/38—Cantilever beams, i.e. booms;, e.g. manufacturing processes, forms, geometry or materials used for booms; Dipper-arms, e.g. manufacturing processes, forms, geometry or materials used for dipper-arms; Bucket-arms
    • 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
    • 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
    • E02F3/425—Drive systems for dipper-arms, backhoes or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Abstract

L'addition concerne une rétropelleteuse du type décrit dans le brevet pnncipal. La rétropelleteuse comporte une flèche 324 constituée de deux éléments creux à section rectangulaire 330, 332 transversalement expacés l'un de l'autre et rigidement raccordés, à leur extrémité inférieure, par un manchon soudé 395 dans lequel passe l'axe de pivot de la flèche et, à leur extrémité supérieure, par une paire de manchons soudés 337 portant l'axe de la tige de piston 334 du vérin de la flèche et par une ferrure support 341 portant le bras de la pelle. Cette construction accroît la rigidité de la flèche. L'addition est applicable aux rétropelleteuses.
FR7714547A 1975-05-12 1977-05-12 Retropelleteuse a depassement du point mort Pending FR2367153A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US57662575A 1975-05-12 1975-05-12
US05/730,598 US4074821A (en) 1975-05-12 1976-10-07 Overcenter backhoe

Publications (1)

Publication Number Publication Date
FR2367153A2 true FR2367153A2 (fr) 1978-05-05

Family

ID=27077009

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7714547A Pending FR2367153A2 (fr) 1975-05-12 1977-05-12 Retropelleteuse a depassement du point mort

Country Status (1)

Country Link
FR (1) FR2367153A2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2457346A1 (fr) * 1979-05-19 1980-12-19 Orenstein & Koppel Ag Excavateur hydraulique a fleche pour grande portee et grande hauteur de levage
WO2014029516A1 (fr) * 2012-08-24 2014-02-27 Putzmeister Engineering Gmbh Bras de mât pour un mât distributeur de béton
WO2014032840A1 (fr) * 2012-08-31 2014-03-06 Putzmeister Engineering Gmbh Mât distributeur de béton
WO2014040770A1 (fr) * 2012-09-13 2014-03-20 Putzmeister Engineering Gmbh Levier de renvoi d'un mécanisme d'entraînement et d'accouplement destiné à un mât de distribution de béton

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2770372A (en) * 1952-04-29 1956-11-13 Koehring Co Boom
FR1463255A (fr) * 1964-12-31 1966-12-23 Bamford Excavators Ltd Bras plongeur pour excavateurs

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2770372A (en) * 1952-04-29 1956-11-13 Koehring Co Boom
FR1463255A (fr) * 1964-12-31 1966-12-23 Bamford Excavators Ltd Bras plongeur pour excavateurs

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2457346A1 (fr) * 1979-05-19 1980-12-19 Orenstein & Koppel Ag Excavateur hydraulique a fleche pour grande portee et grande hauteur de levage
WO2014029516A1 (fr) * 2012-08-24 2014-02-27 Putzmeister Engineering Gmbh Bras de mât pour un mât distributeur de béton
WO2014032840A1 (fr) * 2012-08-31 2014-03-06 Putzmeister Engineering Gmbh Mât distributeur de béton
EP2890854B1 (fr) 2012-08-31 2016-06-22 Putzmeister Engineering GmbH Mât distributeur de béton
US10119283B2 (en) 2012-08-31 2018-11-06 Putzmeister Engineering Gmbh Concrete distributor mast
WO2014040770A1 (fr) * 2012-09-13 2014-03-20 Putzmeister Engineering Gmbh Levier de renvoi d'un mécanisme d'entraînement et d'accouplement destiné à un mât de distribution de béton

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