CA2463319A1 - Wheeled work machine - Google Patents

Wheeled work machine Download PDF

Info

Publication number
CA2463319A1
CA2463319A1 CA002463319A CA2463319A CA2463319A1 CA 2463319 A1 CA2463319 A1 CA 2463319A1 CA 002463319 A CA002463319 A CA 002463319A CA 2463319 A CA2463319 A CA 2463319A CA 2463319 A1 CA2463319 A1 CA 2463319A1
Authority
CA
Canada
Prior art keywords
work machine
wheeled work
assembly
frame assembly
frame
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
CA002463319A
Other languages
French (fr)
Other versions
CA2463319C (en
Inventor
Jeffrey A. Dahl
Michael J. Henline
Warren M. Schatz
Jon P. Spommer
Oryn B. Wagner
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
Priority claimed from US09/977,092 external-priority patent/US6729830B2/en
Priority claimed from US09/977,090 external-priority patent/US20030070861A1/en
Priority claimed from US09/977,091 external-priority patent/US20030070328A1/en
Application filed by Individual filed Critical Individual
Publication of CA2463319A1 publication Critical patent/CA2463319A1/en
Application granted granted Critical
Publication of CA2463319C publication Critical patent/CA2463319C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/08—Superstructures; Supports for superstructures
    • E02F9/0808—Improving mounting or assembling, e.g. frame elements, disposition of all the components on the superstructures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/18—Understructures, i.e. chassis frame on which a vehicle body may be mounted characterised by the vehicle type and not provided for in groups B62D21/02 - B62D21/17
    • B62D21/186—Understructures, i.e. chassis frame on which a vehicle body may be mounted characterised by the vehicle type and not provided for in groups B62D21/02 - B62D21/17 for building site vehicles or multi-purpose tractors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D33/00—Superstructures for load-carrying vehicles
    • B62D33/06—Drivers' cabs
    • B62D33/0617—Drivers' cabs for tractors or off-the-road vehicles
    • B62D33/0625—Drivers' cabs for tractors or off-the-road vehicles open
    • 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
    • E02F3/283—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 single arm pivoted directly on the chassis

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Architecture (AREA)
  • Shovels (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

A first aspect of the present invention is a wheeled work machine (10) includes a rigid frame assembly (12) having a support (14) with a boom pivot (16). A front wheel assembly (18) is joined to the frame assembly (12) proximate the support (14), while a rear wheel assembly (20) is joined to th e frame assembly (12) at an end remote from the support (14). The frame assemb ly (12) further supports an engine (24), operator platform (26) and cargo suppo rt (28). The operator platform (26) is supported by the frame assembly (12) between the boom pivot (16) and the engine (24), while the cargo support (28 ) is disposed behind the operator platform (26). The frame assembly (12) constitutes a second aspect of the invention, while a third aspect is the wheeled work machine (10) with or without the support (14) and a flat radiat or (151) supported by the frame (12) at least partially behind the operator platform (26).

Claims (50)

1. A wheeled work machine, comprising:
a rigid frame assembly having a support with a boom pivot;
a front wheel assembly joined to the frame assembly proximate the support;
a rear wheel assembly joined to the frame assembly at an end remote from the support;
an engine mounted to the frame assembly;
an operator platform supported by the frame assembly and positioned between the boom pivot and the engine; and a cargo support supported by the frame assembly behind the operator platform.
2. The wheeled work machine of claim 1 wherein the front wheel assembly includes steerable wheels.
3. The wheeled work machine of claim 2 and further comprising a steering wheel disposed proximate the operator platform and coupled to wheel hubs of the front wheel assembly.
4. The wheeled work machine of claim 1 wherein the rear wheel assembly includes steerable wheels.
5. The wheeled work machine of claim 4 and further comprising a steering wheel disposed proximate the operator platform and coupled to wheel hubs of the rear wheel assembly.
6. The wheeled work machine of claim 1 and further comprising:
a lift arm pivotally coupled to the support at the boom pivot; and a lift cylinder operably coupled to the lift arm and the frame assembly.
7. The wheeled work machine of claim 6 wherein a single lift arm is pivotally coupled to the support at the boom pivot and a single lift cylinder is operably coupled to the lift arm and the frame assembly.
8. The wheeled work machine of claim 7 wherein a minimum angle formed between the boom pivot and a second pivot at a remote end of the lift arm and a normal reference line from the boom pivot to a level ground surface is in the range of 20 to 35 degrees.
9. The wheeled work machine of claim 7 wherein the lift cylinder is coupled to the frame assembly between the front wheel assembly and the rear wheel assembly.
10. The wheeled work machine of claim 6 and further comprising:
an interface member pivotally joined to an end of the lift arm remote from the boom pivot; and a tilt cylinder operably coupled between the lift arm and the interface member.
11. The wheeled work machine of claim 10 wherein the interface member includes a locking device on each side of the lift arm, each locking device comprising a pivotable lever coupled to a slidable member with a spring.
12. The wheeled work machine of claim 1 wherein the operator platform is disposed in an operator station joined to the frame assembly, the operator station allowing entry into and egress out of the cab between the front and rear wheel assemblies on at least one side of the work machine.
13. The wheeled work machine of claim 12 wherein the operator platform includes two side by side seating positions.
14. The wheeled work machine of claim 12 wherein the frame assembly includes longitudinal frame members extending from the rear wheel assembly toward the front wheel assembly.
15. The wheeled work machine of claim 14 wherein a transverse width between the longitudinal frame members is greater under the cab than under the cargo support area.
16. The wheeled work machine of claim 14 wherein the frame assembly includes a plate member extending between the longitudinal frame members below a floor panel of the cab.
17. The wheeled work machine of claim 14 wherein each longitudinal frame member includes a first portion disposed below the cargo support area, a second portion proximate the support and below a level of the operator platform and an inclined portion extending downwardly from the first portion and joining the first portion to the second portion.
18. The wheeled work machine of claim 1 and further comprising a link assembly joining the front wheel assembly to the frame, the link assembly comprising a pair of lower links pivotally joined to the frame and each end of the front wheel assembly and oriented obliquely with respect to a longitudinal axis of the frame and a pair of upper links pivotally joined to the frame and each end of the front wheel assembly.
19. The wheeled work machine of claim 1 and further comprising:
a lift arm pivotally coupled to the support at the boom pivot;
a lift cylinder operably coupled to the lift arm and the frame assembly; and an instrument cluster in front of the operator platform and behind the boom pivot, the instrument cluster disposed in the cab at a level to allow an operator of height in the range of a female in the fifth percentile to a male in the ninety-fifth percentile to view an end of the lift arm remote from the boom pivot.
20. The wheeled work machine of claim 1 and further comprising a hydraulic pump coupled to the engine and wherein at least one of the front and rear wheel assemblies includes a hydraulic drive motor operably coupled to the hydraulic pump.
21. The wheeled work machine of claim 20 wherein the front wheel assembly includes a common hydraulic motor coupled to the hydraulic pump, the hydraulic motor including output shafts extending in opposite directions.
22. The wheeled work machine of claim 20 wherein the rear wheel assembly includes a common hydraulic motor coupled to the hydraulic pump, the hydraulic motor including output shafts extending in opposite directions.
23. The wheeled work machine of claim 20 and further comprising auxiliary hydraulic couplings disposed at a front end of the work machine, the auxiliary hydraulic couplings being fluidly coupled to the hydraulic pump.
24. The wheeled work machine of claim 1 wherein the engine includes a crankshaft, the crankshaft being transversely oriented relative to side portions of the frame assembly.
25. The wheeled work machine of claim 1 wherein operator platform is disposed between the front wheel assembly and the rear wheel assembly.
26. The wheeled work machine of claim 1 wherein the cargo support comprises a cargo box.
27. The wheeled work machine of claim 1 wherein the cargo support comprises a sprayer.
28. The wheeled work machine of claim 1 wherein the cargo support comprises a hopper.
29. The wheeled work machine of claim 1 wherein the rear wheel assembly includes a suspension assembly on each side of the frame assembly, each suspension assembly coupling the rear wheel assembly to the frame assembly.
30. The wheeled work machine of claim 29 wherein each of the suspension assemblies comprise a leaf spring.
31. The wheeled work machine of claim 30 wherein each of the suspension assemblies include a secondary spring element upon selected deflection of the corresponding leaf spring.
32. The wheeled work machine of claim 1 wherein the operator platform comprises a seat.
33. The wheeled work machine of claim 1 wherein the cargo support is disposed over at least a portion of the engine.
34. A rigid frame assembly for a wheeled work machine, the frame assembly comprising:
a pair of spaced apart longitudinal members with transverse ties, the longitudinal members defining a cargo support portion at one end thereof and a front portion at an end remote from the cargo support portion, and a cab portion disposed between the cargo support portion and the front portion, the cargo support portion having a transverse width greater than at least one of the cargo support portion and the front portion; and an upstanding support joined to the front portion, the support including a lift arm pivot.
35. The rigid frame assembly of claim 34 wherein both cab portion has a transverse width greater than both the cargo support portion and the front portion.
36. The rigid frame assembly of claim 34 wherein portions of the longitudinal members forming the front portion are offset from portions of the longitudinal members forming the cargo support portion with an inclined portion disposed therebetween in each longitudinal member.
37. The rigid frame assembly of claim 36 wherein the inclined portion of each longitudinal member is closer to the cargo support portion than the support.
38. The rigid frame assembly of claim 38 wherein a height of each longitudinal member comprising the inclined portion and the front portion is greater than a height of a portion of the longitudinal member comprising the cargo support portion.
39. The rigid frame assembly of claim 34 and further comprising a lift arm pivotally connected to the support at the lift arm pivot.
40. The rigid frame assembly of claim 39 and further comprising a lift cylinder joined to the front portion at one end and the lift arm at the other end, the lift cylinder extending through an aperture in the support.
41. A wheeled work machine, comprising:
a rigid frame assembly;
a front wheel assembly joined to the frame assembly;
a rear wheel assembly joined to the frame assembly;
an engine mounted to the frame assembly;
an operator seat supported by the frame assembly at least partially between the front wheel assembly and the engine;
a cargo support supported by the frame assembly behind the operator seat and over at least a portion of the engine;
and a radiator assembly supported by the frame at least partially behind the operator seat.
42. The wheeled work machine of claim 41, wherein the radiator assembly is supported by the frame assembly at least partially beneath the cargo support.
43. The wheeled work machine of claim 42, wherein the radiator assembly is supported by the frame assembly behind an axle coupled to the rear wheel assembly.
44. The wheeled work machine of claim 43, wherein the frame assembly includes longitudinal frame members, and wherein the radiator assembly is positioned between, and within C-channels formed by, the longitudinal frame members.
45. The wheeled work machine of claim 42, wherein the radiator assembly includes a radiator.
46. The wheeled work machine of claim 45, wherein the radiator is a substantially flat radiator oriented substantially parallel to the ground.
47. The wheeled work machine of claim 45, wherein the radiator has a vertical dimension and first and second longitudinal dimensions, and wherein the vertical dimension is less than the first and second longitudinal dimensions.
48. The wheeled work machine of claim 47, wherein the radiator is oriented such that a plane formed by the first and second longitudinal dimensions forms an angle with the ground which has a magnitude of less than 45 degrees.
49. The wheeled work machine of claim 48, wherein the radiator assembly further comprises an air flow generation device for moving air across the radiator.
50. The wheeled work machine of claim 49, wherein the air flow generation device further comprises a first fan positioned on top of the radiator and a second fan positioned beneath the radiator.
CA002463319A 2001-10-12 2002-09-26 Wheeled work machine Expired - Lifetime CA2463319C (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US09/977,092 US6729830B2 (en) 2001-10-12 2001-10-12 Wheeled work machine and frame assembly
US09/977,090 US20030070861A1 (en) 2001-10-12 2001-10-12 Wheeled work machine and frame assembly having a flat radiator
US09/977,090 2001-10-12
US09/977,091 2001-10-12
US09/977,091 US20030070328A1 (en) 2001-10-12 2001-10-12 Frame assembly for a wheeled work machine
US09/977,092 2001-10-12
PCT/US2002/030662 WO2003033828A1 (en) 2001-10-12 2002-09-26 Wheeled work machine

Publications (2)

Publication Number Publication Date
CA2463319A1 true CA2463319A1 (en) 2003-04-24
CA2463319C CA2463319C (en) 2009-12-22

Family

ID=27420774

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002463319A Expired - Lifetime CA2463319C (en) 2001-10-12 2002-09-26 Wheeled work machine

Country Status (3)

Country Link
EP (1) EP1436468A1 (en)
CA (1) CA2463319C (en)
WO (1) WO2003033828A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2587226B (en) * 2019-09-19 2023-10-04 Bamford Excavators Ltd A working machine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB874825A (en) * 1959-02-04 1961-08-10 Belingard Ets Improvements in or relating to material handling vehicles
GB1131651A (en) * 1966-05-04 1968-10-23 Eaton Yale & Towne Double articulated vehicles
GB1381091A (en) * 1973-02-01 1975-01-22 Pingon P J Multiplepurpose earthwork machine
AU7550700A (en) * 1999-10-08 2001-04-23 Anne Frances O'Connell Earth moving apparatus
US6409457B1 (en) * 1999-10-15 2002-06-25 George Korycan Work vehicle

Also Published As

Publication number Publication date
WO2003033828A1 (en) 2003-04-24
EP1436468A1 (en) 2004-07-14
CA2463319C (en) 2009-12-22

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EEER Examination request
MKEX Expiry

Effective date: 20220926