Vehicle seat

Claim 2

An implement seat for a riding implement, said seat having a lateral dimension disposed transversely of the direction of travel of said implement comprising an arcuately-surfaced member adapted to receive a rider in sitting position thereon, said member having its arcuate dimension aligned generally transversely with respect to the direction of movement of said implement and adapted to receive a rider in sitting position thereon, the focus of said arcuate surface residing beneath said implement approximately equidistant from the sides thereof and in the approximate plane of the surface supporting said implement, the arcuate dimension of said member being sufficient to span at least a major portion of the lateral dimension of said implement, whereby said rider seated on said arcuate surface may change sitting positions along said arcuate surface as said implement moves over a nonhorizontal surface and thereby remain in an upright position without increasing the overturn propensity of said implement as a consequence of said change in rider position on said member.

Claim 3

The invention of claim 1 wherein said arcuately-surfaced member includes upstanding portions at its lateral extremities adapted to preclude lateral dislodging of the rider.

Claim 4

The implement seat of claim 1 and including mounting means for securing said arcuately-surfaced member on said implement in position to receive said rider.

Claim 5

A unitary implement seat for riding implements having a gross weight such that the rider''s seat contributes significantly to the overturn propensity of the implement, said seat having a lateral dimension disposed transversely of the direction of travel of said implement and comprising an arcuately-surfaced member disposed on said implement and adapted to receive a rider in a sitting position upon the arcuate surface thereof, wherein the arc of said surface of said member lies substantially transversely to the direction of movement of said implement and the focus of the arc is located substantially equidistant from either side of said implement and in the approximate plane of the surface supporting said implement, the arcuate dimension of said member being sufficient to cause said member to span at least a major portion of the lateral dimension of said implement, whereby said rider seated on said arcuate surface may change sitting positions along said arcuate surface as said implement moves over a nonhorizontal surface and thereby remain in an upright position without increasing the overturn propensity of said implement as a consequence of said change in rider position on said member.

Claim 6

A unitary implement seat for riding implements having a gross weight such that the rider''s seat contributes significantly to the overturn propensity of the implement, said seat having a lateral dimension disposed transversely of the direction of travel of said implement and comprising an arcuately-surfaced member disposed on said implement and adapted to receive a rider in a sitting position upon the arcuate surface thereof, wherein the arc of said surface of said member lies substantially transversely to the direction of movement of said implement and the focus of the arc is located substantially equidistant from either side of said implement and in the approximate plane of the surface supporting said implement, the arcuate dimension of said member being sufficient to cause said member to span at least a major portion of the lateral dimension of said implement, whereby said rider seated on said arcuate surface may change sitting positions along said arcuate surface as said implement moves over a nonhorizontal surface and thereby remain in an upright position without increasing the overturn propensity of said implement as a consequence of said change in rider position on said member.

Claim 7

The invention of claim 4 wherein said arcuately-surfaced member includes upstanding portions at its lateral extremities adapted to preclude lateral dislodging of the rider.

Claim 8

A self-propelled riding implement of decreased propensity toward overturning and having at least two laterally disposed driving wheels, said implement being characterized by its seat wherein said seat comprises an arcuately-surfaced member disposed on the top side of said implement being characterized by its seat wherein said seat comprises an arcuately-surfaced member disposed on the top side of said implement and approximately over the driving wheels thereof, the focus of said mEmber residing directly beneath the center of said member, approximately equidistant from either driving wheel, and in the approximate plane of the surface over which said implement travels.

Claim 9

A self-propelled riding implement of decreased propensity toward overturning and having at least two laterally disposed driving wheels, said implement being characterized by its seat wherein said seat comprises an arcuately-surfaced member disposed on the top side of said implement being characterized by its seat wherein said seat comprises an arcuately-surfaced member disposed on the top side of said implement and approximately over the driving wheels thereof, the focus of said mEmber residing directly beneath the center of said member, approximately equidistant from either driving wheel, and in the approximate plane of the surface over which said implement travels.