Patent ID: 9522575
Filing Date: 2016-12-20
CPC Classification: B60C

Claim Text:
1. A pneumatic agricultural tire, comprising: a circumferential tread portion 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 tread lugs extending upward from a tread floor by a lug height; the lugs extending at an angle to a rotational axis of the tire to define a rotational direction of the tire such that when the tire is rolling in a forward direction an axially inner end of each lug engages the ground before an axially outer end of the lug engages the ground; each lug having a radially outer ground engaging surface defined between a leading edge of the lug and a trailing edge of the lug; the leading edge of each lug including an inside leading edge facing partially toward the equatorial plane, an outside leading edge facing partially toward the respective shoulder from which the lug extends, and a straight nose edge joining the inside leading edge and the outside leading edge; and a nose wall extending upward from the tread floor to the nose edge, the nose wall having a leading root portion having a nose ridge extending upward from the tread floor to at least one-half the lug height, the nose ridge having a radius of curvature of no greater than ½ inch, the nose ridge extending at a nose angle of from about 20° to about 60° to a radial plane, the nose wall including first and second nose wall sides extending upward from the tread floor and joined at the nose ridge.