A tracked vehicle, such as tracked carrier to carry and enable use of work equipment (e.g., a crane, an aerial work platform, a drill rig, etc.) on various terrains, is provided. The tracked vehicle may comprise a frame comprising an equipment mounting area for mounting work equipment above the fram
A tracked vehicle, such as tracked carrier to carry and enable use of work equipment (e.g., a crane, an aerial work platform, a drill rig, etc.) on various terrains, is provided. The tracked vehicle may comprise a frame comprising an equipment mounting area for mounting work equipment above the frame. The frame may comprise a pair of side rails that have a spacing in a widthwise direction of the tracked vehicle which corresponds to a standard truck frame side rail spacing (e.g., 34 inches). An operator cabin comprises a seating area which may comprise a single seat for an operator or a first seat for the operator and a second seat for a second person next to the operator. At least part of a power plant of the tracked vehicle may be mounted above the frame and behind the operator cabin. The tracked vehicle comprises a plurality of track assemblies for traction of the tracked vehicle.
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1. A tracked vehicle comprising: a) a chassis comprising a frame extending along a longitudinal direction of the tracked vehicle;b) an operator cabin mounted to the frame, the frame comprising a pair of side members extending in an area behind the operator cabin in the longitudinal direction of the
1. A tracked vehicle comprising: a) a chassis comprising a frame extending along a longitudinal direction of the tracked vehicle;b) an operator cabin mounted to the frame, the frame comprising a pair of side members extending in an area behind the operator cabin in the longitudinal direction of the tracked vehicle, the pair of side members being spaced apart in a widthwise direction of the tracked vehicle for supporting work equipment carried by the tracked vehicle;c) a power plant mounted to the frame and comprising a prime mover, the prime mover being mounted above the side members, at least part of the power plant occupying a space next to the operator cabin along the widthwise direction of the tracked vehicle and extending past the operator cabin along the longitudinal direction of the tracked vehicle; andd) a plurality of track assemblies for traction of the tracked vehicle, a first one of the track assemblies being on a first side of the tracked vehicle, a second one of the track assemblies being on a second side of the tracked vehicle, each track assembly of the plurality of track assemblies being mounted to the frame and comprising: i) a plurality of wheels including: a drive wheel;an end wheel spaced apart from the drive wheel in the longitudinal direction of the tracked vehicle; anda plurality of support wheels arranged in an inline configuration between the drive wheel and the end wheel;andii) an endless track disposed around the plurality of wheels for engaging the ground, the endless track comprising: I. a top run extending between the drive wheel and the end wheel over the support wheels without contacting the support wheels; andII. a ground-engaging bottom run extending under the support wheels, the drive wheel being in driving engagement with the endless track to impart motion to the endless track;at least part of the prime mover being mounted to the frame and located directly above at least part of the first one of said track assemblies;each of the side members extending rearwards in the longitudinal direction of the tracked vehicle past the operator cabin and past said part of the power plant that extends past the operator cabin. 2. The tracked vehicle of claim 1, wherein the frame comprises (i) an upper frame structure including the pair of side members and (ii) a lower frame structure below the upper frame structure, the frame defining a vertical gap between the upper frame structure and the lower frame structure. 3. The tracked vehicle of claim 2, wherein the track assembly comprises a plurality of wheel mounting structures secured to the frame and spaced apart in the longitudinal direction of the tracked vehicle, each wheel mounting structure of the plurality of wheel mounting structures supporting at least one of the plurality of wheels of the track assembly, the wheel mounting structure being secured to both (i) a given one of the side members and (ii) the lower frame structure. 4. The tracked vehicle of claim 2, wherein the vertical gap has a height in a height direction of the tracked vehicle of at least 0.5 inches. 5. The tracked vehicle of claim 2, wherein the vertical gap facilitates installation of an attachment threaded rod assembly for attaching the work equipment to the side members. 6. The tracked vehicle of claim 2, wherein the lower frame structure comprises a pair of hollow beams spaced apart in the widthwise direction of the tracked vehicle. 7. The tracked vehicle of claim 1, wherein each side member of the pair of side members includes a C-shape channel. 8. The tracked vehicle of claim 1, wherein the frame comprises a plurality of crossmembers extending transversally to the longitudinal direction of the tracked vehicle and interconnecting the side members. 9. The tracked vehicle of claim 1, wherein the seating area is configured for allowing an operator to sit therein, the seating area defining a plurality of seat positions along a widthwise direction of the tracked vehicle. 10. The tracked vehicle of claim 1, wherein the tracked vehicle is configured such that, when the work equipment is in a retracted nonworking state, the work equipment extends frontward in the longitudinal direction of the tracked vehicle beyond a rear side of the operator cabin. 11. The tracked vehicle of claim 9, wherein the tracked vehicle, with the work equipment mounted to the frame, respects a vehicle height limit for travel on a public road infrastructure. 12. The tracked vehicle of claim 9, wherein an overall height of the tracked vehicle, measured with the work equipment in a retracted nonworking state, is no more than 12.5 feet. 13. The tracked vehicle of claim 9, wherein the operator cabin comprises a first seat at a first one of the seat positions for the operator and a second seat at a second one of the seat positions for a person sitting next to the operator. 14. The tracked vehicle of claim 11, wherein the vehicle height limit for travel on the public road infrastructure is between 13.5 feet and 14 feet. 15. The tracked vehicle of claim 1, wherein the end wheel is a rear wheel, the rear wheel and a rearmost one of the support wheels overlapping in the longitudinal direction of the tracked vehicle. 16. The tracked vehicle of claim 10, wherein the tracked vehicle is configured such that, when the work equipment is in the retracted nonworking state, the work equipment extends frontward in the longitudinal direction of the tracked vehicle beyond a front side of the operator cabin. 17. The tracked vehicle of claim 1, wherein each support wheel of the plurality of support wheels occupies a majority of a height of the track assembly. 18. The tracked vehicle of claim 1, wherein the tracked vehicle has a length of at least 5 m, a width of at least 2 m, and a height of no more than 4 m. 19. The tracked vehicle of claim 1, wherein the tracked vehicle has a payload capacity of at least 10000 lbs. 20. The tracked vehicle of claim 1, wherein the side members comprise side rails. 21. The tracked vehicle of claim 20, wherein the standard truck frame side rail spacing is 34 inches such that the spacing of the side rails in the widthwise direction of the tracked vehicle is 34 inches. 22. The tracked vehicle of claim 20, wherein the side rails are configured to define a spacing along the widthwise direction of the tracked vehicle corresponding to a standard truck frame side rail spacing. 23. The tracked vehicle of claim 1, wherein the spacing of the side members in the widthwise direction of the tracked vehicle is 34 inches. 24. The tracked vehicle defined in claim 1, each of the wheels having a respective axis of rotation, wherein the axes of rotation of the drive wheel and of the idle wheel are further from the ground than the axes of rotation of all of the support wheels. 25. The tracked vehicle defined in claim 1, wherein the side members extend along the longitudinal direction of the tracked vehicle and wherein each of the side members extends longitudinally at one end past the drive wheel of a corresponding one of the endless tracks and at another end past the end wheel of the corresponding endless track. 26. The tracked vehicle of claim 1, wherein the prime mover includes a part that is above the side members and behind the operator cabin. 27. The tracked vehicle of claim 26, wherein at least part of the prime mover that is behind the operator cabin occupies more space along the widthwise direction of the tracked vehicle than does the operator cabin. 28. The tracked vehicle of claim 27, wherein the power plant comprises a hydraulic pump connected to the prime mover and mounted above the frame and behind the operator cabin. 29. The tracked vehicle of claim 28, wherein the power plant comprises a housing which houses the prime mover and the hydraulic pump, and the housing, the prime mover and the hydraulic pump are installable on and removable from the frame together as a unit. 30. The tracked vehicle defined in claim 1, wherein the side members extend under the operator cabin. 31. The tracked vehicle defined in claim 1, wherein part of the power plant extending past the operator cabin along the longitudinal direction of the tracked vehicle is visible by an operator seated inside the operator cabin via a window. 32. The tracked vehicle of claim 1, wherein the power plant further comprises a hydraulic pump, a hydraulic fluid reservoir, a cooling system and at least one battery, all disposed above the side members. 33. The tracked vehicle of claim 32, wherein the power plant further comprises a housing that houses the prime mover, the hydraulic pump, the hydraulic fluid reservoir, the cooling system and the at least one battery. 34. The tracked vehicle of claim 33, wherein the housing has an L-shaped configuration when viewed from above the tracked vehicle. 35. The tracked vehicle defined in claim 1, wherein each of the side members extends longitudinally at one end past the drive wheel or the end wheel of the corresponding endless track. 36. The tracked vehicle defined in claim 1, wherein the power plant comprises a housing which houses at least the prime mover, the housing having an L-shaped configuration extending behind and next to the operator cabin. 37. The tracked vehicle of claim 1, the prime mover comprising an internal combustion engine, at least part of the internal combustion engine being located directly above said part of the first one of the track assemblies. 38. The tracked vehicle of claim 37, wherein at least another part of the prime mover is mounted to the frame directly above at least part of the second one of the track assemblies. 39. The tracked vehicle of claim 1, at least part of the operator cabin being located directly above at least part of the second one of said track assemblies. 40. The tracked vehicle of claim 1, wherein the tracked vehicle has a width of at least 2 m, the operator cabin occupying more than half the width of the tracked vehicle. 41. The tracked vehicle of claim 1, wherein at least a portion of the prime mover that is located directly above said part of the first one of the track assemblies is located in an area behind the operator cabin. 42. A tracked vehicle comprising: a) a chassis comprising a frame extending along a longitudinal direction of the tracked vehicle, the frame comprising a pair of elongated structural members spaced apart in a widthwise direction of the tracked vehicle for supporting work equipment carried by the tracked vehicle;b) an operator cabin mounted to the frame;c) a power plant mounted to the frame and comprising a prime mover, wherein the power plant comprises a housing which houses at least the prime mover, the housing having an L-shaped configuration extending behind and next to the operator cabin, there being no portion of the prime mover under the operator cabin; andd) a plurality of track assemblies for traction of the tracked vehicle, a first one of the track assemblies being on a first side of the tracked vehicle, a second one of the track assemblies being on a second side of the tracked vehicle, each track assembly of the plurality of track assemblies being mounted to the frame and comprising: i) a plurality of wheels including: a drive wheel;an end wheel spaced apart from the drive wheel in the longitudinal direction of the tracked vehicle; anda plurality of support wheels arranged in an inline configuration between the drive wheel and the end wheel;andii) an endless track disposed around the plurality of wheels for engaging the ground, the endless track comprising: I. a top run extending between the drive wheel and the end wheel over the support wheels; andII. a ground-engaging bottom run extending under the support wheels, the drive wheel being in driving engagement with the endless track to impart motion to the endless track, the elongated structural members having a bottom surface below the top run of the endless track and a top surface above at least part of the top run of the endless track. 43. The tracked vehicle of claim 42, at least part of the power plant being mounted above the elongated structural members, occupying a space next to the operator cabin along the widthwise direction of the tracked vehicle, and extending past the operator cabin along the longitudinal direction of the tracked vehicle. 44. The tracked vehicle defined in claim 42, wherein the top run of each of the endless track extends between the respective drive wheel and the respective end wheel without contacting any of the respective support wheels. 45. The tracked vehicle defined in claim 42, a spacing of the elongated structural members in the widthwise direction of the tracked vehicle being no greater than 34 inches. 46. The tracked vehicle defined in claim 42, wherein the prime mover is mounted above the frame and behind the operator cabin. 47. The tracked vehicle of claim 42, wherein the operator cabin comprises a seating area for allowing an operator to sit therein, the seating area defining a plurality of seat positions along a widthwise direction of the tracked vehicle. 48. The tracked vehicle of claim 42, wherein the end wheel is a rear wheel, the rear wheel and a rearmost one of the support wheels overlapping in the longitudinal direction of the tracked vehicle. 49. The tracked vehicle of claim 42, wherein each support wheel of the plurality of support wheels occupies a majority of a height of the track assembly. 50. The tracked vehicle of claim 42, wherein the pair of elongated structural members extends in an area behind the operator cabin in the longitudinal direction of the tracked vehicle. 51. The tracked vehicle of claim 42, wherein the tracked vehicle is configured such that, when the work equipment is in a retracted nonworking state, the work equipment extends frontward in the longitudinal direction of the tracked vehicle beyond a front side of the operator cabin. 52. The tracked vehicle of claim 42, wherein the elongated structural members comprise side rails. 53. The tracked vehicle defined in claim 42, wherein the elongated structural members extend along the longitudinal direction of the tracked vehicle and wherein each of the elongated structural members extends longitudinally at one end past the drive wheel of a corresponding one of the endless tracks and at another end past the end wheel of the corresponding endless track. 54. A tracked vehicle comprising: a) a chassis comprising a frame extending along a longitudinal direction of the tracked vehicle;b) an operator cabin mounted to the frame, the frame comprising a pair of side members extending in an area behind the operator cabin in the longitudinal direction of the tracked vehicle, the pair of side members being spaced apart in a widthwise direction of the tracked vehicle for mounting work equipment carried by the tracked vehicle to the side members;c) a power plant mounted to the frame and comprising a prime mover, the prime mover being mounted above the side members, at least part of the power plant occupying a space next to the operator cabin along the widthwise direction of the tracked vehicle and extending past the operator cabin along the longitudinal direction of the tracked vehicle; andd) a plurality of track assemblies for traction of the tracked vehicle, a first one of the track assemblies being on a first side of the tracked vehicle, a second one of the track assemblies being on a second side of the tracked vehicle, each track assembly of the plurality of track assemblies being mounted to the frame and comprising: i) a plurality of wheels including: a drive wheel;an end wheel spaced apart from the drive wheel in the longitudinal direction of the tracked vehicle; anda plurality of support wheels arranged in an inline configuration between the drive wheel and the end wheel;andii) an endless track disposed around the plurality of wheels for engaging the ground, the endless track comprising: I. a top run extending between the drive wheel and the end wheel over the support wheels without contacting the support wheels; andII. a ground-engaging bottom run extending under the support wheels, the drive wheel being in driving engagement with the endless track to impart motion to the endless track;wherein the side members extend along the longitudinal direction of the tracked vehicle and wherein each of the side members extends longitudinally at one end past the drive wheel of a corresponding one of the endless tracks and at another end past the end wheel of the corresponding endless track. 55. The tracked vehicle of claim 54, wherein the tracked vehicle is configured such that, when the work equipment is in a retracted nonworking state, the work equipment extends frontward in the longitudinal direction of the tracked vehicle beyond a front side of the operator cabin. 56. The tracked vehicle of claim 54, wherein each support wheel of the plurality of support wheels occupies a majority of a height of the track assembly. 57. The tracked vehicle of claim 54, wherein the side members comprise side rails. 58. The tracked vehicle defined in claim 54, wherein the side members extend along the longitudinal direction of the tracked vehicle and wherein each of the side members extends longitudinally at one end past the drive wheel of a corresponding one of the endless tracks and at another end past the end wheel of the corresponding endless track. 59. The tracked vehicle defined in claim 54, a spacing of the side members in the widthwise direction of the tracked vehicle being no greater than 34 inches. 60. A tracked vehicle comprising: a) a chassis comprising a frame extending along a longitudinal direction of the tracked vehicle, the frame comprising an equipment mounting area for mounting work equipment above the frame;b) an operator cabin mounted to the frame, the frame comprising a pair of side members extending in an area behind the operator cabin in the longitudinal direction of the tracked vehicle, the pair of side members being spaced apart in a widthwise direction of the tracked vehicle for supporting work equipment carried by the tracked vehicle;c) a power plant mounted to the frame and comprising a prime mover, the prime mover being mounted above the side members, at least part of the power plant occupying a space next to the operator cabin along the widthwise direction of the tracked vehicle and extending past the operator cabin along the longitudinal direction of the tracked vehicle; andd) a plurality of track assemblies for traction of the tracked vehicle, a first one of the track assemblies being on a first side of the tracked vehicle, a second one of the track assemblies being on a second side of the tracked vehicle, each track assembly of the plurality of track assemblies being mounted to the frame and comprising: i) a plurality of wheels including: a drive wheel;an end wheel spaced apart from the drive wheel in the longitudinal direction of the tracked vehicle; anda plurality of support wheels arranged in an inline configuration between the drive wheel and the end wheel;andii) an endless track disposed around the plurality of wheels for engaging the ground, the endless track comprising: I. a top run extending between the drive wheel and the end wheel over the support wheels without contacting the support wheels; andII. a ground-engaging bottom run extending under the support wheels, the drive wheel being in driving engagement with the endless track to impart motion to the endless track;at least part of the prime mover being mounted to the frame and located directly above at least part of the first one of said track assemblies;wherein each of the side members extends longitudinally at one end past the drive wheel or the end wheel of the corresponding endless track. 61. The tracked vehicle of claim 60, wherein the tracked vehicle has a width of at least 2 m, the operator cabin occupying more than half the width of the tracked vehicle. 62. The tracked vehicle of claim 60, wherein the tracked vehicle is configured such that, when the work equipment is in a retracted nonworking state, the work equipment extends frontward in the longitudinal direction of the tracked vehicle beyond a front side of the operator cabin. 63. The tracked vehicle of claim 60, wherein each support wheel of the plurality of support wheels occupies a majority of a height of the track assembly. 64. The tracked vehicle of claim 60, wherein the side members comprise side rails. 65. The tracked vehicle defined in claim 60, wherein the side members extend along the longitudinal direction of the tracked vehicle and wherein each of the side members extends longitudinally at one end past the drive wheel of a corresponding one of the endless tracks and at another end past the end wheel of the corresponding endless track. 66. The tracked vehicle defined in claim 60, a spacing of the side members in the widthwise direction of the tracked vehicle being no greater than 34 inches. 67. A tracked vehicle comprising: a) a chassis comprising a frame extending along a longitudinal direction of the tracked vehicle, the frame comprising an equipment mounting area for mounting work equipment above the frame;b) an operator cabin mounted to the frame, the frame comprising a pair of side members extending in an area behind the operator cabin in the longitudinal direction of the tracked vehicle, the pair of side members being spaced apart in a widthwise direction of the tracked vehicle for supporting work equipment carried by the tracked vehicle;c) a power plant mounted to the frame and comprising a prime mover, the prime mover being mounted above the side members, at least part of the power plant occupying a space next to the operator cabin along the widthwise direction of the tracked vehicle and extending past the operator cabin along the longitudinal direction of the tracked vehicle; andd) a plurality of track assemblies for traction of the tracked vehicle, a first one of the track assemblies being on a first side of the tracked vehicle, a second one of the track assemblies being on a second side of the tracked vehicle, each track assembly of the plurality of track assemblies being mounted to the frame and comprising: i) a plurality of wheels including: a drive wheel;an end wheel spaced apart from the drive wheel in the longitudinal direction of the tracked vehicle; anda plurality of support wheels arranged in an inline configuration between the drive wheel and the end wheel;andii) an endless track disposed around the plurality of wheels for engaging the ground, the endless track comprising: I. a top run extending between the drive wheel and the end wheel over the support wheels without contacting the support wheels; andII. a ground-engaging bottom run extending under the support wheels, the drive wheel being in driving engagement with the endless track to impart motion to the endless track;at least part of the prime mover being mounted to the frame and located directly above at least part of the first one of said track assemblies;wherein the power plant comprises a housing which houses at least the prime mover, the housing having an L-shaped configuration extending behind and next to the operator cabin. 68. The tracked vehicle of claim 60, wherein the tracked vehicle is configured such that, when the work equipment is in a retracted nonworking state, the work equipment extends frontward in the longitudinal direction of the tracked vehicle beyond a front side of the operator cabin. 69. The tracked vehicle of claim 67, wherein each support wheel of the plurality of support wheels occupies a majority of a height of the track assembly. 70. The tracked vehicle of claim 67, wherein the side members comprise side rails. 71. The tracked vehicle defined in claim 67, wherein the side members extend along the longitudinal direction of the tracked vehicle and wherein each of the side members extends longitudinally at one end past the drive wheel of a corresponding one of the endless tracks and at another end past the end wheel of the corresponding endless track. 72. The tracked vehicle defined in claim 67, a spacing of the side members in the widthwise direction of the tracked vehicle being no greater than 34 inches.
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Magnussen Michael W,AUX, Access platform system for earth-moving machinery.
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