JPS5233883B2 - - Google Patents

Info

Publication number
JPS5233883B2
JPS5233883B2 JP47085352A JP8535272A JPS5233883B2 JP S5233883 B2 JPS5233883 B2 JP S5233883B2 JP 47085352 A JP47085352 A JP 47085352A JP 8535272 A JP8535272 A JP 8535272A JP S5233883 B2 JPS5233883 B2 JP S5233883B2
Authority
JP
Japan
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.)
Expired
Application number
JP47085352A
Other languages
Japanese (ja)
Other versions
JPS4939905A (en
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 filed Critical
Priority to JP47085352A priority Critical patent/JPS5233883B2/ja
Priority to US384299A priority patent/US3927781A/en
Priority to DE2342399A priority patent/DE2342399C3/en
Publication of JPS4939905A publication Critical patent/JPS4939905A/ja
Publication of JPS5233883B2 publication Critical patent/JPS5233883B2/ja
Expired 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
    • E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
    • E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
    • E02F3/435—Control of dipper or bucket position; Control of sequence of drive operations for dipper-arms, backhoes or the like
    • E02F3/436—Control of dipper or bucket position; Control of sequence of drive operations for dipper-arms, backhoes or the like for keeping the dipper in the horizontal position, e.g. self-levelling
    • 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
    • E02F3/308—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 outwardly
    • 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
JP47085352A 1972-08-28 1972-08-28 Expired JPS5233883B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP47085352A JPS5233883B2 (en) 1972-08-28 1972-08-28
US384299A US3927781A (en) 1972-08-28 1973-07-31 Excavator
DE2342399A DE2342399C3 (en) 1972-08-28 1973-08-22 Backhoe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47085352A JPS5233883B2 (en) 1972-08-28 1972-08-28

Publications (2)

Publication Number Publication Date
JPS4939905A JPS4939905A (en) 1974-04-15
JPS5233883B2 true JPS5233883B2 (en) 1977-08-31

Family

ID=13856278

Family Applications (1)

Application Number Title Priority Date Filing Date
JP47085352A Expired JPS5233883B2 (en) 1972-08-28 1972-08-28

Country Status (3)

Country Link
US (1) US3927781A (en)
JP (1) JPS5233883B2 (en)
DE (1) DE2342399C3 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5230819A (en) * 1975-09-04 1977-03-08 Tatsuo Ookohara Production of porous* lighttweight concrete board
JPS52145002U (en) * 1976-04-28 1977-11-02
JPS52145905U (en) * 1976-04-30 1977-11-05
JPS5849268Y2 (en) * 1976-07-13 1983-11-10 株式会社神戸製鋼所 Hydraulic face shovel capable of horizontal extrusion
JPS53113103A (en) * 1977-03-14 1978-10-03 Mitsubishi Heavy Ind Ltd Device for correcting tilt angle of bucket of excavator
JPS5736702Y2 (en) * 1977-04-13 1982-08-13
JPS6014817Y2 (en) * 1979-04-18 1985-05-11 株式会社小松製作所 excavation loader excavation loading equipment
DE3020638C2 (en) * 1979-05-31 1984-03-22 Hitachi Construction Machinery Co. Ltd., Tokyo Backhoe
EP0072539B1 (en) * 1981-08-18 1987-04-22 Hitachi Construction Machinery Co., Ltd. Hydraulic circuit of hydraulic power shovel
US4775288A (en) * 1986-10-03 1988-10-04 Dynamic Industries, Inc. High-lift loader
US4986010A (en) * 1989-03-13 1991-01-22 Cartner Jack O Sloper apparatus
EP1389250A1 (en) * 2001-05-22 2004-02-18 Liebherr-Werk Bischofshofen GmbH Wheel loader
GB0416336D0 (en) * 2004-07-22 2004-08-25 Bamford Excavators Ltd Method of operating a machine
JP5143858B2 (en) * 2010-04-20 2013-02-13 住友重機械工業株式会社 Construction machinery
EP3814576A4 (en) * 2018-06-28 2022-07-13 Tigercat Industries Inc. Heavy equipment boom system and method and hydraulic circuit therefor
US10676893B1 (en) * 2019-09-10 2020-06-09 Larry Irby Williams Self-leveling front-end loader having a double boom with a dogleg bend of 105 to 135 degrees including an extension powered by hydraulic cylinders
CN113338367B (en) * 2021-06-28 2022-01-11 徐工集团工程机械股份有限公司科技分公司 Single-side movable arm structure of four-connecting-rod two-oil-cylinder skid-steer loader and lifting method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3230717A (en) * 1964-05-08 1966-01-25 Alden Lars Anders Gustaf Loading gear
US3220581A (en) * 1964-12-14 1965-11-30 Case Co J I Material handling equipment
US3339763A (en) * 1966-10-14 1967-09-05 Univ Oklahoma State Automatic back hoe control system
US3465903A (en) * 1967-08-11 1969-09-09 Bucyrus Erie Co Excavator shovel apparatus
CS163734B2 (en) * 1968-04-18 1975-11-07

Also Published As

Publication number Publication date
JPS4939905A (en) 1974-04-15
US3927781A (en) 1975-12-23
DE2342399B2 (en) 1975-03-20
DE2342399C3 (en) 1975-10-30
DE2342399A1 (en) 1974-03-14

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