Vehicle chassis resiliently supported on main frame

Claim 2

A tractor comprising, a main frame including the engine and drive assembly mounted unsprung on wheels for generally following the contour of the terrain, means on said frame for positioning and controlling an implement, a chassis of substantial length defining an operator station and including beam structure providing rigidity and extending from said operator station, suspension meAns mounted on said frame and supporting said chassis including, resilient means supporting said chassis on at least two transversely spaced points at said operator station permitting substantial movement between said chassis and said frame, vibration dampening means connecting said chassis with said frame on at least two transversely spaced points at said operator station, at least two resilient elements mounted on said frame and supporting said chassis at transversely spaced points and stabilizing the end of said chassis remote from said operator''s station thereby isolating said chassis from the shock and vibrations of the main frame of said vehicle and provide a cushioned support under the operator station.

Claim 3

A tractor as set forth in claim 1 wherein said suspension means includes sway restricting means connected between said vehicle chassis and said frame to limit the transverse sway of the chassis relative to the main frame.

Claim 4

A tractor as set forth in claim 1 wherein said resilient means includes a sway bar connected to said main frame and said chassis to limit the transverse sway of the chassis relative to said main frame.

Claim 5

A tractor as set forth in claim 1 wherein said vibration dampening means comprise two shock absorbers connected between said main frame and said chassis to reduce shock transmission between said main frame and said chassis.

Claim 6

A tractor as set forth in claim 1 wherein said operator station defines control levers, and a steering means for controlling the operation of said vehicle.

Claim 7

A tractor as set forth in claim 1 wherein said chassis includes protective bars integral with said chassis to thereby provide a protective device at said operator station.

Claim 8

A tractor as set forth in claim 1 wherein said suspension means include a torsion bar, means pivotally supporting said torsion bar on said chassis, means defining a pair of arms extending from said torsion bar, means pivotally connecting said arms to said main frame to thereby provide restricted lateral movement of said chassis relative to said frame and restrain said vehicle chassis in tilting relative to aid main frame.

Claim 9

A tractor as set forth in claim 1 wherein said chassis includes fenders.

Claim 10

A tractor as set forth in claim 1 wherein said chassis includes a platform.

Claim 11

A tractor having a plurality of wheels defining a wheel base of a predetermined length comprising, a main frame including the engine and drive assembly mounted unsprung on said wheels for generally following the contour of the terrain, means on said frame for positioning and controlling an implement, a chassis of substantially the same length as the vehicle wheel base defining an operator station including beam structure providing rigidity and extending from said operator station, suspension means mounted on said frame and supporting said chassis including, resilient means supporting said chassis on at least two transversely spaced points at said operator station permitting substantial movement between said chassis and said frame, vibration dampening means connecting said chassis with said frame on at least two transversely spaced points at said operator station, at least two resilient elements mounted on said frame and supporting said chassis at transversely spaced points and stabilizing the end of said chassis extending from said operator station thereby isolating said chassis from the shock and vibrations of the main frame of said vehicle and provide cushioned support under the operator station.

Claim 12

A tractor having a plurality of wheels defining a wheel base of a predetermined length comprising, a main frame including the engine and drive assembly mounted unsprung on said wheels for generally following the contour of the terrain, means on said frame for positioning and controlling an implement, a chassis of substantially the same length as the vehicle wheel base defining an operator station including beam structure providing rigidity and extending from said operator station, suspension means mounted on said frame and supporting said chassis including, resilient means supporting said chassis on at least two transversely spaced points at said operator station permitting substantial movement between said chassis and said frame, vibration dampening means connecting said chassis with said frame on at least two transversely spaced points at said operator station, at least two resilient elements mounted on said frame and supporting said chassis at transversely spaced points and stabilizing the end of said chassis extending from said operator station thereby isolating said chassis from the shock and vibrations of the main frame of said vehicle and provide cushioned support under the operator station.

Claim 13

A tractor as set forth in claim 10 wherein said resilient means supporting said chassis includes two coil springs connecting said main frame with said chassis on at least two transversely spaced points at said operator station.

Claim 14

A tractor as set forth in claim 10 wherein said resilient elements of said suspension means define two rubber mounts on said frame positioned on opposite sides of the end of said chassis.

Claim 15

A tractor as set forth in claim 10 wherein said beam structure of said chassis includes means supporting an engine hood extending forwardly of said operator station to thereby reduce the vibrations of the engine hood and reduce noise at the operator station.

Claim 16

A tractor as set forth in claim 10 wherein said chassis includes a cab positioned at said operator station to thereby isolate said operator station from noises responsive to operation of said vehicle.

Claim 17

A tractor as set forth in claim 10 wherein said chassis includes a seat.

Claim 18

A tractor as set forth in claim 10 wherein said chassis includes control levers and a steering wheel.

Claim 19

A tractor as set forth in claim 10 wherein said chassis includes fenders and at least one mirror.

Claim 20

A tractor as set forth in claim 10 wherein said chassis includes, a platform, an operator seat, fenders, control levers, and a steering means.