| 摘要 |
A pneumatic agricultural tire (20) for an industrial type tractor or like vehicle has a plurality of central lugs (60) and a plurality of shoulder lugs (40, 50). The plurality of central lugs (60) are arranged in a circumferentially continuous row and extend across the equatorial plane (EP). Each central lug (60) is similar in shape and orientation relative to each circumferentially adjacent central lug (60). Each central lug (60) has a leading edge (51) and a trailing edge (52). The leading edges (51) of each lug (60) are located on an opposite of the equatorial plane relative to the trailing edge (52) of the same central lug (60). The plurality of shoulder lugs (40, 50) are divided into first and second rows and project radially outwardly from the inner tread (34) and extend from the lateral tread edges (33A, 33B) toward the equatorial plane of the tire (20). The shoulder lugs (40, 50) have an axially inner end (43, 53) being axially spaced from a leading end (64) and a trailing end (66) of the axially adjacent central lugs (60). The lugs (40, 50) in conjunction with the central lugs (60) have constant radii of curvature R1 and R2 on each tread half (32A and 32B). The curvatures R1 and R2 provide nondirectional performance capability of the tread (32). |
