US 9,809,063 B2
Low compaction cantilever tire
Jason R. Barr, Akron, OH (US); Samuel O. Givens, Copley, OH (US); Robert W. Asper, Wadsworth, OH (US); and Dennis W. Snyder, Uniontown, OH (US)
Assigned to Bridgestone Americas Tire Operations, LLC, Nashville, TN (US)
Filed by Bridgestone Americas Tire Operations, LLC, Nashville, TN (US)
Filed on Feb. 4, 2015, as Appl. No. 14/613,540.
Claims priority of provisional application 61/940,950, filed on Feb. 18, 2014.
Prior Publication US 2015/0231933 A1, Aug. 20, 2015
Int. Cl. B60C 3/00 (2006.01); B60C 13/00 (2006.01); B60C 11/03 (2006.01); B60C 9/02 (2006.01)
CPC B60C 13/00 (2013.01) [B60C 3/00 (2013.01); B60C 9/02 (2013.01); B60C 9/0292 (2013.01); B60C 11/0311 (2013.01); B60C 11/0332 (2013.01); B60C 13/003 (2013.01); B60C 2013/005 (2013.01); B60C 2200/08 (2013.01); Y10T 152/10855 (2015.01)] 11 Claims
OG exemplary drawing
 
1. A pneumatic tire and rim assembly, comprising:
a rim having rim flanges; and
a tire including:
a circumferential tread portion;
a carcass including a pair of beads and one or more radial body plies extending between and wrapped around the beads;
one or more belts disposed between the carcass and the circumferential tread portion; and
a pair of sidewall portions extending from the beads to the tread portion, each of the sidewall portions including a lower cantilevered sidewall portion, at least an axially outer one-half of the lower cantilevered sidewall portion being free of any reinforcing layers other than the one or more radial body plies; and
wherein the tire is mounted on the rim such that the lower cantilevered sidewall portions extend generally axially outward past the rim flanges, and the lower cantilevered sidewall portions are configured such that when the tire is operating in a pneumatic mode and remains inflated to an inflation pressure within a manufacturer recommended pressure range for a normal inflated running mode of the tire and when the tire is loaded at maximum rated load for the inflation pressure, the lower cantilevered sidewall portions each exhibit a radially inward axially outward slope, the tire not being a run flat tire; and
wherein the tire is an agricultural drive tire and the circumferential tread comprises an agricultural tread including first and second rows of tread lugs extending from first and second shoulders of the tread portion toward an equatorial plane of the tire, the lugs extending at an angle of from 0° to 50° to a rotational axis of the tire, the tread having a ratio of contact area to total tread area of less than 50%.