Claims:We claim

1. An adaptive wheel base assembly for a work vehicle (100) comprising
a. an axle (101),
b. a supporting means (102), mounted on top centre of the axle (101), comprises a first end (113) and a second end (114), a plurality of pair of holes are associated with the supporting means (102) at the surface, including a first pair of holes (109a, 109b), a second pair of holes (110a, 110b), a third pair of holes (111a, 111b) and a fourth pair of holes (112a, 112b), wherein said adaptive wheel base assembly for a work vehicle (100) further comprises,
i. a connecting rod (106), comprising at least two ends, including a first end and a second end, said connecting rod (106) is attached longitudinally perpendicular and on top centre of the axle (101) by a first clamp (103), wherein said first clamp (103) is secured to the axle (101) by a third plurality of securing means (108a, 108b);
ii. a plurality of clamps including a second clamp (104a) and a third clamp (104b), each having a pair of protrusions positioned opposite to each other, each protrusion has a provision for receiving securing means, said second clamp (104a) is assembled to the second end of the connecting rod (106), said third clamp (104b) is assembled to the first end of the connecting rod (106), a first plurality of bushes (105a, 105b) are positioned on top of the provision of the pair of protrusions, a second plurality of bushes (105c, 105d) are positioned on top of the provision of the pair of protrusions;
iii. a plurality of securing means including a first plurality of securing means (107a, 107b) that are secured to the second clamp (104a), and a second plurality of securing means (107c, 107d) are that secured to the third clamp (104b), wherein said supporting means (102) is assembled to the axle (101) by plurality of securing means and by the plurality of clamps.

2. The adaptive wheel base assembly for a work vehicle (100) as claimed in claim 1, wherein said axle (101) is installed on the first pair of holes (109a, 109b) and the third pair of holes (111a, 111b).
3. The adaptive wheel base assembly for a work vehicle (100) as claimed in claim 1, wherein said axle (101) is installed on the second pair of holes (110a, 110b) and the fourth pair of holes (112a, 112b).

4. The adaptive wheel base assembly for a work vehicle (100) as claimed in claim 1 and claim 2, wheel base of said work vehicle is 2000mm.

5. The adaptive wheel base assembly for a work vehicle (100) as claimed in claim 1 and claim 3, wheel base of said work vehicle is 1900mm.

6. The adaptive wheel base assembly for a work vehicle (100) as claimed in claim 1, claim 2 and claim 4, said work vehicle is a haulage vehicle.

7. The adaptive wheel base assembly for a work vehicle (100) as claimed in claim 1, claim 3 and claim 5, said work vehicle is a agriculture field vehicle.

8. The adaptive wheel base assembly for a work vehicle (100) as claimed in claim 1, wherein the plurality of pair of holes associated with the supporting means (102) at the surface are 4.

9. The adaptive wheel base assembly for a work vehicle (100) as claimed in claim 1, wherein the plurality of pair of holes associated with the supporting means (102) at the surface are 6.

10. The adaptive wheel base assembly for a work vehicle (100) as claimed in claim 1, wherein the plurality of pair of holes associated with the supporting means (102) at the surface are 8. , Description:TITLE OF THE INVENTION: AN ADAPTIVE WHEEL BASE ASSEMBLY FOR A WORK VEHICLE

FIELD OF THE INVENTION

The present invention is generally related to a chassis of a work vehicle, particularly the present invention is related to an adaptive wheel base assembly for a work vehicle.

BACKGROUND OF THE INVENTION

US publication no. 20080116665 discloses a vehicle having an adjustable wheel base, wherein the front wheels of the vehicle having an adjustable wheel base are joined to the front portion of a main frame, on which a vehicle seat is mounted. The upper ends of a pair of rotating arms are rotatably joined to the main frame. The lower ends of the rotating arms are rotatably joined to the rear wheels. The upper arms and the lower arm are provided rotatably connected together such that the main frame and the rear wheels are joined at the back of the rotating arms. The operating portion of the operating apparatus, on which the main frame is installed, is joined via the operating links to the rotating arms. By operating the operating apparatus, the rotating arms are rotated by the operating links and the rear wheels are moved with respect to the front wheels. Simultaneously, the inclination of the main frame is changed.
The above cited document describes about the adjustment of wheel base by adjusting the inclination of the seat, wherein the said invention comprises many linkages to provide the means of adjusting the wheel base.

Chinese application no. 201410097309.7 discloses a device for adjusting the wheel base, the automobile body height and the minimum ground clearance and an automobile with the device, and relates to the technical field of automobiles. The device solves the problems that an automobile or a commercial vehicle is poor in trafficability performance and bad in visual field when driven on a complex road condition, and a cross country vehicle is bad in high-speed stability, large in wind resistance and poor in comfort. According to the adjusting device, two back chassis retraction adjusting devices are symmetrically arranged along the center line of an automobile body, a retractable pipe is fixed on a back chassis of the automobile, the included angle between the oblique section and the horizontal section of a retractable rod is an obtuse angle, the oblique section of the retractable rod is upwards inserted into the retractable pipe from the lower end of the retractable pipe, the horizontal section of the retractable rod is connected with an automobile cab chassis, and a retraction assembly moves in a retraction mode through mechanical connection or hydraulic pressure. The automobile comprises the automobile body and the adjusting device. The automobile body comprises an automobile frame and a deformable outer shell attached to the automobile frame. The deformable outer shell comprises an outer shell back portion and an outer shell middle portion. The adjusting device can adjust the wheel base, the automobile body height and the minimum ground clearance.

From the above prior arts, adjusting the wheel is not feasible for the farmers in terms of cost efficiency and also it is complex for farmers to adjust the wheel base of the vehicle. Therefore there is need in the art to provide an adaptive wheel base assembly for a work vehicle to vary the wheel base without addition of linkages or complex mechanisms.

OBJECTIVES OF THE INVENTION

An objective of the present invention is to provide an adaptive wheel base assembly for a work vehicle, for varying the wheelbase to meet plurality of application requirements such as agriculture and haulage purposes, without any major changes in the structure of the vehicle.

Another objective of the present invention is to provide an adaptive wheel base assembly for a work vehicle, which is easy to assemble and require no complex mechanisms.

BREIF DESCRIPTION OF DRAWINGS

Figure 1. illustrates an embodiment of the present invention an adaptive wheel base assembly for a work vehicle.

Figure 2. illustrates the axle and sub assemblies of the present invention.

Figure 3. illustrates the perspective view of the embodiment of the present invention in the absence of supporting means.

Figure 4. shows the perspective view of the supporting means in detail.

Figure 5 illustrates the bottom view of the supporting means as depicted in an embodiment of the present invention.

While the invention is amenable to various modifications and alternative forms, specifics thereof have been shown by way of example in the drawings and will be described in detail. It should be understood, however, that the intention is not to limit the invention to the particular embodiments described. On the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

SUMMARY OF THE INVENTION

An adaptive wheel base assembly for a work vehicle comprising an axle, a supporting means, mounted on top centre of the axle, comprises a first end and a second end, a plurality of pair of holes are associated with the supporting means at the surface, including a first pair of holes, a second pair of holes, a third pair of holes and a fourth pair of holes, wherein said adaptive wheel base assembly for a work vehicle further comprises, a connecting rod, comprising at least two ends, including a first end and a second end, said connecting rod is attached longitudinally perpendicular and on top centre of the axle by a first clamp, wherein said first clamp is secured to the axle by a third plurality of securing means, a plurality of clamps including a second clamp and a third clamp, each having a pair of protrusions positioned opposite to each other, each protrusion has a provision for receiving securing means, said second clamp is assembled to the second end of the connecting rod, said third clamp is assembled to the first end of the connecting rod, a first plurality of bushes are positioned on top of the provision of the pair of protrusions, a second plurality of bushes are positioned on top of the provision of the pair of protrusions, a plurality of securing means including a first plurality of securing means that are secured to the second clamp, and a second plurality of securing means are that secured to the first clamp, wherein said supporting means is assembled to the axle by plurality of securing means and by the plurality of clamps.

DETAILED DESCRIPTION OF THE INVENTION

The present invention as embodied by an adaptive wheel base assembly for a work vehicle, succinctly fulfils the above-mentioned need(s) in the art. The present invention has objective(s) arising as a result of the above-mentioned need(s), said objective(s) being enumerated below. In as much as the objective(s) of the present invention are enumerated, it will be obvious to a person skilled in the art that, the enumerated objective(s) are not exhaustive of the present invention in its entirety, and are enclosed solely for the purpose of illustration. Further, the present invention encloses within its scope and purview, any structural alternative(s) and/or any functional equivalent(s) even though, such structural alternative(s) and/or any functional equivalent(s) are not mentioned explicitly herein or elsewhere, in the present disclosure. The present invention therefore encompasses also, any improvisation(s)/modification(s) applied to the structural alternative(s)/functional alternative(s) within its scope and purview. The present invention may be embodied in other specific form(s) without departing from the spirit or essential attributes thereof.

Throughout this specification, the use of the word "comprise" and variations such as "comprises" and "comprising" may imply the inclusion of an element or elements not specifically recited.

Figure 1 illustrates an embodiment of the present invention an adaptive wheel base assembly for a work vehicle. An adaptive wheel base assembly for a work vehicle (100) comprising
an axle (101), a supporting means (102), mounted on top centre of the axle (101). The supporting means (102) is mounted to the axle (101) with a plurality clamps and securing elements. In an alternate embodiment, position of the supporting means (102) can be varied with respect to the axle (101). As illustrated in figure 4, the supporting means (102) comprises at least two end, including a first end (113) and a second end (114), wherein the engine block (not shown) is installed at the second end (114) and behind the axle (101).
A plurality of pair of holes are associated with the supporting means (102) at the surface, including a first pair of holes (109a, 109b), a second pair of holes (110a, 110b), a third pair of holes (111a, 111b) and a fourth pair of holes (112a, 112b), wherein said axle (101) can be installed on any of the alternate pair of holes. For example, the axle (101) can be installed on the first pair of holes (109a, 109b) and the third pair of holes (111a, 111b), thus the wheel base of the work vehicle is 2000mm. In an another example, the axle (101) can be installed on the second pair of holes (110a, 110b) and the fourth pair of holes (112a, 112b) thus the wheel base of the work vehicle is 1900mm. For longer wheel base, the vehicle can be used for haulage applications, which will avoid the front lifting of the vehicle. For shorter wheel base, the vehicle can be used for paddy field applications.

Figure 2 illustrates the axle (101) and the associated plurality of clamps and securing means of said adaptive wheel base assembly for a work vehicle (100). A connecting rod (106), comprising at least two ends, including a first end and a second end, said connecting rod (106) is attached longitudinally perpendicular and on top centre of the axle (101) by a first clamp (103), wherein said first clamp (103) is secured to the axle (101) by a third plurality of securing means (108a, 108b).

A plurality of clamps including a second clamp (104a) and a third clamp (104b), each having a pair of protrusions positioned opposite to each other, each protrusion has a provision for receiving securing means, said second clamp (104a) is assembled to the second end of the connecting rod (106), said third clamp (104b) is assembled to the first end of the connecting rod (106), a first plurality of bushes (105a, 105b) are positioned on top of the provision of the pair of protrusions, a second plurality of bushes (105c, 105d) are positioned on top of the provision of the pair of protrusions.

A plurality of securing means including a first plurality of securing means (107a, 107b) that are secured to the second clamp (104a), and a second plurality of securing means (107c, 107d) are that secured to the third clamp (104b), wherein said supporting means (102) is assembled to the axle (101) by plurality of securing means and by the plurality of clamps.

Figure 3 illustrates the perspective view of the embodiment as stated above, said adaptive wheel base assembly for a work vehicle (100). In an another embodiment (not shown), length of the supporting means (102) can be varied. A plurality of pair of holes associated with the supporting means is not limited to four pairs. Figure 5 depicts the bottom view of the supporting means (102) as stated above in the embodiment of the present invention, said adaptive wheel base assembly for a work vehicle (100), wherein said supporting means (102) can be installed at any of the position on top of the axle (101).
LIST OF REFERENCE NUMERALS

100 – Adaptive wheel base assembly for a work vehicle
101 – Axle
102 – Supporting means
103 – First clamp
104a – Second clamp
104b – Third clamp
105a, 105b – First plurality of bushes
105c, 105d – Second plurality of bushes
106 – Connecting rod
107a, 107b – First plurality of securing means
107c, 107d – Second plurality of securing means
108a, 108b – Third plurality of securing means
109a, 109b – First pair of holes
110a, 110b – Second pair of holes
111a, 111b – Third pair of holes
112a, 112b – Fourth pair of holes
113 – First end
114 – Second end