Patent ID: 6698480
Filing Date: 2004-03-02
Classification: B60B

Abstract:
A non-pneumatic tire and wheel system comprising, in combination:a solid tire fabricated of an elastomeric material in an annular configuration having an exterior tread surface and an interior surface; a wheel having a hub and a rim assembly sharing a common axis of rotation, a plurality of radially oriented shock absorbing spokes, each spoke having a radially interior end and a radially exterior end for coupling the hub and rim assembly; the hub having a large central bore through the middle thereof, a plurality of smaller apertures equally spaced around the periphery for removably coupling the wheel to a vehicle and a plurality of radial extending lips with apertures there-through for pivotably coupling the hub to a spoke at its radially interior end; the rim assembly having an interior rim and an exterior rim with the interior rim having a plurality of inwardly radially extending lips with apertures there-through for pivotably coupling the rim assembly to a spoke at its radially exterior end; and each shock absorbing spoke having a central cylindrical tube and an interior cap having an aperture and an exterior cap having an aperture, each spoke having an interior piston and rod with an aperture and with a pin pivotably coupling one of the spokes to the interior cylinder, each spoke having an exterior piston and rod with an aperture and with a pin pivotably coupling one of the spokes to the rim assembly, the interior pistons and exterior pistons dividing the space within each tube into an interior chamber and an exterior chamber and a central chamber, an interior coil spring between the interior cap and interior piston and an exterior coil spring between the exterior cap and exterior piston and an intermediate coil spring between the interior and exterior pistons, two one-way valves through each piston, each valve including an aperture for the flow of fluid there-through and a resilient uni-directional flapper whereby the rim assembly and spokes will deform when encountering a bump while the coil springs and valves will cushion the bumps during operation and use.