CA2050565A1 - Vertical lift loader boom - Google Patents

Vertical lift loader boom

Info

Publication number
CA2050565A1
CA2050565A1 CA002050565A CA2050565A CA2050565A1 CA 2050565 A1 CA2050565 A1 CA 2050565A1 CA 002050565 A CA002050565 A CA 002050565A CA 2050565 A CA2050565 A CA 2050565A CA 2050565 A1 CA2050565 A1 CA 2050565A1
Authority
CA
Canada
Prior art keywords
lift
lift arm
arm section
arms
pivotally mounted
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
CA002050565A
Other languages
French (fr)
Other versions
CA2050565C (en
Inventor
Lonnie D. Hoechst
Orlan J. Loraas
Wally L. Kaczmarski
Larry E. Albright
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.)
Doosan Bobcat North America Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2050565A1 publication Critical patent/CA2050565A1/en
Application granted granted Critical
Publication of CA2050565C publication Critical patent/CA2050565C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • 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
    • E02F3/34—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 bucket-arms, i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms directly pivoted on the frames of tractors or self-propelled machines
    • E02F3/3405—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 bucket-arms, i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms directly pivoted on the frames of tractors or self-propelled machines and comprising an additional linkage mechanism

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • General Engineering & Computer Science (AREA)
  • Shovels (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

A loader boom assembly (10) has articulated lift arms that have first (28) and second (26) lift arm sections pivotally mounted together. The rear lift arm section (32) is pivotally mounted to rear portions of a prime mover frame (14). The main lift arm section (30) is substantially longer than the first lift arm section (28) and pivots on the outer end of the rear lift arm link (32). The lift arm sections (26, 28) are in a folded position when the lift arms are lowered, and a control link (66) is provided to cause the lift arms to unfold as the lift arms are raised to keep the forward portion of the main lift arm section moving along a generally vertical path after a selected lift height to provide a better forward reach of the boom assembly at the higher range of lift.
CA002050565A 1990-09-05 1991-09-03 Vertical lift loader boom Expired - Lifetime CA2050565C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US57764590A 1990-09-05 1990-09-05
US577,645 1990-09-05

Publications (2)

Publication Number Publication Date
CA2050565A1 true CA2050565A1 (en) 1992-03-06
CA2050565C CA2050565C (en) 2003-04-15

Family

ID=24309575

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002050565A Expired - Lifetime CA2050565C (en) 1990-09-05 1991-09-03 Vertical lift loader boom

Country Status (6)

Country Link
EP (1) EP0474210B1 (en)
JP (1) JP3133793B2 (en)
KR (1) KR0162497B1 (en)
BR (1) BR9103803A (en)
CA (1) CA2050565C (en)
DE (1) DE69122933T2 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9311770D0 (en) * 1993-06-08 1993-07-28 Bamford Excavators Ltd Loader vehicle
GB2278826B (en) * 1993-06-08 1997-01-22 Bamford Excavators Ltd Loader vehicles
KR100360347B1 (en) * 1999-03-31 2002-11-13 대우종합기계 주식회사 Lift boom assembly for a loader machine
US6854951B2 (en) 2000-09-26 2005-02-15 Komatsu Ltd. Vertical lift type arm device
JP4687152B2 (en) 2005-03-09 2011-05-25 株式会社豊田自動織機 Lift arm device in work vehicle and work vehicle including the same
US8453785B2 (en) * 2007-03-28 2013-06-04 Clark Equipment Company Lift arm assembly for a power machine or vehicle
JP5094649B2 (en) * 2008-09-03 2012-12-12 株式会社クボタ Loader working machine
JP5119094B2 (en) * 2008-09-03 2013-01-16 株式会社クボタ Loader working machine
EP3555375A2 (en) 2016-12-16 2019-10-23 Clark Equipment Company Loader with telescopic lift arm
USD832551S1 (en) 2017-10-12 2018-10-30 Clark Equipment Company Loader
USD832552S1 (en) 2017-10-12 2018-10-30 Clark Equipment Company Lift arm for loader
CN112723251A (en) * 2021-04-02 2021-04-30 山东工力机械有限公司 Vehicle-mounted cargo handling forklift

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR85419E (en) * 1961-09-13 1965-08-06 Backhoe loader
US3215292A (en) * 1964-09-14 1965-11-02 Sperry Rand Corp Material handling apparatus-front lift type
FR1578437A (en) * 1968-02-07 1969-08-14
US4355946A (en) * 1980-09-29 1982-10-26 Deere & Company Lift arm and control linkage structure for loader buckets

Also Published As

Publication number Publication date
BR9103803A (en) 1992-05-19
DE69122933D1 (en) 1996-12-05
JPH0626068A (en) 1994-02-01
JP3133793B2 (en) 2001-02-13
DE69122933T2 (en) 1997-05-22
AU8359591A (en) 1992-03-12
EP0474210A1 (en) 1992-03-11
AU649263B2 (en) 1994-05-19
CA2050565C (en) 2003-04-15
KR920006223A (en) 1992-04-27
EP0474210B1 (en) 1996-10-30
KR0162497B1 (en) 1998-12-01

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry