GB1426358A - Hydraulic self-levelling device for a boom-mounted bucket - Google Patents

Hydraulic self-levelling device for a boom-mounted bucket

Info

Publication number
GB1426358A
GB1426358A GB1963573A GB1963573A GB1426358A GB 1426358 A GB1426358 A GB 1426358A GB 1963573 A GB1963573 A GB 1963573A GB 1963573 A GB1963573 A GB 1963573A GB 1426358 A GB1426358 A GB 1426358A
Authority
GB
United Kingdom
Prior art keywords
spool
valve
port
boom
bucket
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.)
Expired
Application number
GB1963573A
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.)
Navistar Inc
Original Assignee
International Harverster Corp
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 International Harverster Corp filed Critical International Harverster Corp
Publication of GB1426358A publication Critical patent/GB1426358A/en
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
    • E02F3/431—Control of dipper or bucket position; Control of sequence of drive operations for bucket-arms, front-end loaders, dumpers or the like
    • E02F3/432—Control of dipper or bucket position; Control of sequence of drive operations for bucket-arms, front-end loaders, dumpers or the like for keeping the bucket in a predetermined position or attitude
    • E02F3/433—Control of dipper or bucket position; Control of sequence of drive operations for bucket-arms, front-end loaders, dumpers or the like for keeping the bucket in a predetermined position or attitude horizontal, e.g. self-levelling

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)
  • Multiple-Way Valves (AREA)
  • Fluid-Pressure Circuits (AREA)
GB1963573A 1972-05-02 1973-04-25 Hydraulic self-levelling device for a boom-mounted bucket Expired GB1426358A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US24964172A 1972-05-02 1972-05-02

Publications (1)

Publication Number Publication Date
GB1426358A true GB1426358A (en) 1976-02-25

Family

ID=22944373

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1963573A Expired GB1426358A (en) 1972-05-02 1973-04-25 Hydraulic self-levelling device for a boom-mounted bucket

Country Status (5)

Country Link
US (1) US3794199A (enrdf_load_stackoverflow)
JP (1) JPS5736375B2 (enrdf_load_stackoverflow)
AU (1) AU451239B2 (enrdf_load_stackoverflow)
CA (1) CA963354A (enrdf_load_stackoverflow)
GB (1) GB1426358A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102619241A (zh) * 2012-01-12 2012-08-01 广西大学 一种空间可控机构式装载机
CN103046590A (zh) * 2013-01-30 2013-04-17 江苏柳工机械有限公司 一种装载机工作液压系统的控制方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4928360A (enrdf_load_stackoverflow) * 1972-07-05 1974-03-13
US4372729A (en) * 1980-07-21 1983-02-08 Veda, Inc. Tilt control
US4844685A (en) * 1986-09-03 1989-07-04 Clark Equipment Company Electronic bucket positioning and control system
US5501570A (en) * 1994-01-21 1996-03-26 Case Corporation Anti-rollback mechanism for a loader mechanism of an off-highway implement

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3521781A (en) * 1968-09-26 1970-07-28 Case Co J I Anti-rollback mechanism
US3568869A (en) * 1969-01-09 1971-03-09 Case Co J I Antirollback mechanism
US3695474A (en) * 1970-08-05 1972-10-03 Case Co J I Hydraulic control linkage for implement

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102619241A (zh) * 2012-01-12 2012-08-01 广西大学 一种空间可控机构式装载机
CN102619241B (zh) * 2012-01-12 2014-06-25 广西大学 一种空间可控机构式装载机
CN103046590A (zh) * 2013-01-30 2013-04-17 江苏柳工机械有限公司 一种装载机工作液压系统的控制方法

Also Published As

Publication number Publication date
AU5052672A (en) 1974-07-04
US3794199A (en) 1974-02-26
JPS4921901A (enrdf_load_stackoverflow) 1974-02-26
JPS5736375B2 (enrdf_load_stackoverflow) 1982-08-03
AU451239B2 (en) 1974-07-15
CA963354A (en) 1975-02-25
DE2322094A1 (de) 1973-11-08
DE2322094B2 (de) 1976-05-26

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee