Patent ID: 11970236
Assignee: nan
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A steering mechanism for a vehicle, said vehicle comprising a cargo hold chassis (10), communicably coupled with a front wheel (10a) or a front set of wheels, said front wheel(s) located on a front axle; and a rider and pillion support chassis (20), communicably coupled with a rear wheel (12a) or a rear set of wheels, said rear wheel(s) located on a rear axle; wherein, said cargo hold chassis (10) is located operatively forward and operatively lower with respect to said rider and pillion support chassis (20); said steering mechanism located operatively atop the cargo hold chassis (10), and comprising:
a steering stem (30), a steering column rod (36), and a steering handle (32), said steering stem (30) being mounted in an operative front of said cargo hold chassis (10), said steering handle (32) being mounted operatively atop said cargo hold chassis (10); said steering column rod (36) being mounted operatively connected to said steering stem (30) at its upper end, said steering stem (30) being spaced apart from said steering handle (32) in order to provide for off-centre steering;
said steering mechanism being defined in terms of three axes, in that, an axis about which said steering handle (32) angularly displaces being a handlebar axis (axis-A), an axis about which said steering stem (30) angularly displaces being a steering axis (axis-C), and an axis responsible for translation of motion from said steering handle (32) about said handlebar axis (axis-A) to said steering stem (30) about said steering axis (axis-C) being an intermediate axis (axis-B), wherein, said steering axis (axis-C), said intermediate axis (axis-B), and said handlebar axis (axis-A) being substantially coplanar and any angular displacement input about said handlebar axis being translated to said steering axis via said intermediate axis using said steering mechanism;
said handlebar axis (axis-A) being an axis about which said steering handle is angularly displaceable, said intermediate axis (axis-B) being an axis about which said steering column rod is angularly displaceable, and said steering axis (axis-C) being an axis about which said steering stem is angularly displaceable, said steering axis (axis-C) defining a rake angle for said vehicle; and
said steering axis (axis-C) being spaced apart from said handlebar axis (axis-A) in order to provide for off-centre steering, said intermediate axis (axis-B) being spaced apart from said handlebar axis (axis-A) in order to provide for off-centre steering, and said steering axis (axis-C) intersecting with said intermediate axis (axis-B);
a bar linkage mechanism (500) having:
a first V-link (35) being connected and concentric with said steering handle (32) along said handlebar axis (axis-A), said first V-link (35) being aligned to said steering handle (32), located below said steering handle (32), and angularly displaceable about said handlebar axis (axis-A),
a second V-link (37) being connected and concentric to said steering column rod (36) along said intermediate axis (axis-B) for translation of motion from the steering handle (32) to said front wheel (10a) or to said front set of wheels, and said second V-link (37) being aligned to said steering column rod (36) located above said steering stem (30), and angularly displaceable about said intermediate axis (axis-B),

at least one steering rod link (38a, 38b) connected to said first V-link (35) and said second V-link (37).